Home / 1,283,308,874.40-1,924,963,311.60-313,960,490.40

Finding the Fourth Proportional to 1,283,308,874.40, 1,924,963,311.60 and 313,960,490.40

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Solution

The fourth proportional to 1,283,308,874.40, 1,924,963,311.60 and 313,960,490.40 is: 470,940,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,308,874.40 : 1,924,963,311.60 = 313,960,490.40 : x
  2. Step 2: Convert to fraction form
    1,283,308,874.40/1,924,963,311.60 = 313,960,490.40/x
  3. Step 3: Cross multiply
    1,283,308,874.40x = 1,924,963,311.60 × 313,960,490.40
  4. Step 4: Simplify right side
    1,283,308,874.40x = 604,362,425,311,943,936
  5. Step 5: Solve for x
    x = 604,362,425,311,943,936/1,283,308,874.40
  6. Step 6: Final answer
    x = 470,940,735.60

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Half scale
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Double scale
Find fourth proportional to 1,283,308,875.40, 1,924,963,313.10 and 313,960,491.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.