Home / 426,411,299.34-639,616,949.19-153,782,066.34

Finding the Fourth Proportional to 426,411,299.34, 639,616,949.19 and 153,782,066.34

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Solution

The fourth proportional to 426,411,299.34, 639,616,949.19 and 153,782,066.34 is: 230,673,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,411,299.34 : 639,616,949.19 = 153,782,066.34 : x
  2. Step 2: Convert to fraction form
    426,411,299.34/639,616,949.19 = 153,782,066.34/x
  3. Step 3: Cross multiply
    426,411,299.34x = 639,616,949.19 × 153,782,066.34
  4. Step 4: Simplify right side
    426,411,299.34x = 98,361,616,112,525,008
  5. Step 5: Solve for x
    x = 98,361,616,112,525,008/426,411,299.34
  6. Step 6: Final answer
    x = 230,673,099.57

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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.