Home / 83,242,898.10-124,864,347.15-81,808,007.40

Finding the Fourth Proportional to 83,242,898.10, 124,864,347.15 and 81,808,007.40

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Solution

The fourth proportional to 83,242,898.10, 124,864,347.15 and 81,808,007.40 is: 122,712,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,242,898.10 : 124,864,347.15 = 81,808,007.40 : x
  2. Step 2: Convert to fraction form
    83,242,898.10/124,864,347.15 = 81,808,007.40/x
  3. Step 3: Cross multiply
    83,242,898.10x = 124,864,347.15 × 81,808,007.40
  4. Step 4: Simplify right side
    83,242,898.10x = 10,214,903,435,643,370
  5. Step 5: Solve for x
    x = 10,214,903,435,643,370/83,242,898.10
  6. Step 6: Final answer
    x = 122,712,011.10

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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.