Home / 99,804,545.10-149,482,868.85-81,888,641.10

Finding the Fourth Proportional to 99,804,545.10, 149,482,868.85 and 81,888,641.10

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Solution

The fourth proportional to 99,804,545.10, 149,482,868.85 and 81,888,641.10 is: 122,649,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,804,545.10 : 149,482,868.85 = 81,888,641.10 : x
  2. Step 2: Convert to fraction form
    99,804,545.10/149,482,868.85 = 81,888,641.10/x
  3. Step 3: Cross multiply
    99,804,545.10x = 149,482,868.85 × 81,888,641.10
  4. Step 4: Simplify right side
    99,804,545.10x = 12,240,948,997,856,018
  5. Step 5: Solve for x
    x = 12,240,948,997,856,018/99,804,545.10
  6. Step 6: Final answer
    x = 122,649,213.88

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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.