Home / 99,645,369.10-149,468,053.65-81,470,086.90

Finding the Fourth Proportional to 99,645,369.10, 149,468,053.65 and 81,470,086.90

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Solution

The fourth proportional to 99,645,369.10, 149,468,053.65 and 81,470,086.90 is: 122,205,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,645,369.10 : 149,468,053.65 = 81,470,086.90 : x
  2. Step 2: Convert to fraction form
    99,645,369.10/149,468,053.65 = 81,470,086.90/x
  3. Step 3: Cross multiply
    99,645,369.10x = 149,468,053.65 × 81,470,086.90
  4. Step 4: Simplify right side
    99,645,369.10x = 12,177,175,319,639,364
  5. Step 5: Solve for x
    x = 12,177,175,319,639,364/99,645,369.10
  6. Step 6: Final answer
    x = 122,205,130.35

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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.