Home / 643,792,221.40-965,688,332.10-234,861,712.60

Finding the Fourth Proportional to 643,792,221.40, 965,688,332.10 and 234,861,712.60

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Solution

The fourth proportional to 643,792,221.40, 965,688,332.10 and 234,861,712.60 is: 352,292,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,792,221.40 : 965,688,332.10 = 234,861,712.60 : x
  2. Step 2: Convert to fraction form
    643,792,221.40/965,688,332.10 = 234,861,712.60/x
  3. Step 3: Cross multiply
    643,792,221.40x = 965,688,332.10 × 234,861,712.60
  4. Step 4: Simplify right side
    643,792,221.40x = 226,803,215,514,843,552
  5. Step 5: Solve for x
    x = 226,803,215,514,843,552/643,792,221.40
  6. Step 6: Final answer
    x = 352,292,568.90

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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.