Home / 124,020,618.46-185,905,872.79-77,995,379.90

Finding the Fourth Proportional to 124,020,618.46, 185,905,872.79 and 77,995,379.90

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Solution

The fourth proportional to 124,020,618.46, 185,905,872.79 and 77,995,379.90 is: 116,914,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,020,618.46 : 185,905,872.79 = 77,995,379.90 : x
  2. Step 2: Convert to fraction form
    124,020,618.46/185,905,872.79 = 77,995,379.90/x
  3. Step 3: Cross multiply
    124,020,618.46x = 185,905,872.79 × 77,995,379.90
  4. Step 4: Simplify right side
    124,020,618.46x = 14,499,799,173,897,124
  5. Step 5: Solve for x
    x = 14,499,799,173,897,124/124,020,618.46
  6. Step 6: Final answer
    x = 116,914,424.02

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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.