Home / 99,680,022.90-149,359,071.15-56,420,579.70

Finding the Fourth Proportional to 99,680,022.90, 149,359,071.15 and 56,420,579.70

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Solution

The fourth proportional to 99,680,022.90, 149,359,071.15 and 56,420,579.70 is: 84,539,761.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,680,022.90 : 149,359,071.15 = 56,420,579.70 : x
  2. Step 2: Convert to fraction form
    99,680,022.90/149,359,071.15 = 56,420,579.70/x
  3. Step 3: Cross multiply
    99,680,022.90x = 149,359,071.15 × 56,420,579.70
  4. Step 4: Simplify right side
    99,680,022.90x = 8,426,925,377,736,546
  5. Step 5: Solve for x
    x = 8,426,925,377,736,546/99,680,022.90
  6. Step 6: Final answer
    x = 84,539,761.66

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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.