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Finding the Fourth Proportional to 696,936,639.24, 961,743,101.22 and 379,390,275.36

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Solution

The fourth proportional to 696,936,639.24, 961,743,101.22 and 379,390,275.36 is: 523,542,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,936,639.24 : 961,743,101.22 = 379,390,275.36 : x
  2. Step 2: Convert to fraction form
    696,936,639.24/961,743,101.22 = 379,390,275.36/x
  3. Step 3: Cross multiply
    696,936,639.24x = 961,743,101.22 × 379,390,275.36
  4. Step 4: Simplify right side
    696,936,639.24x = 364,875,979,997,436,160
  5. Step 5: Solve for x
    x = 364,875,979,997,436,160/696,936,639.24
  6. Step 6: Final answer
    x = 523,542,542.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.