Home / 769,824,412.60-1,154,736,618.90-640,577,961.40

Finding the Fourth Proportional to 769,824,412.60, 1,154,736,618.90 and 640,577,961.40

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Solution

The fourth proportional to 769,824,412.60, 1,154,736,618.90 and 640,577,961.40 is: 960,866,942.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,824,412.60 : 1,154,736,618.90 = 640,577,961.40 : x
  2. Step 2: Convert to fraction form
    769,824,412.60/1,154,736,618.90 = 640,577,961.40/x
  3. Step 3: Cross multiply
    769,824,412.60x = 1,154,736,618.90 × 640,577,961.40
  4. Step 4: Simplify right side
    769,824,412.60x = 739,698,829,288,890,752
  5. Step 5: Solve for x
    x = 739,698,829,288,890,752/769,824,412.60
  6. Step 6: Final answer
    x = 960,866,942.10

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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.