Home / 66,428,740.20-99,643,110.30-52,991,812.20

Finding the Fourth Proportional to 66,428,740.20, 99,643,110.30 and 52,991,812.20

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Solution

The fourth proportional to 66,428,740.20, 99,643,110.30 and 52,991,812.20 is: 79,487,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,740.20 : 99,643,110.30 = 52,991,812.20 : x
  2. Step 2: Convert to fraction form
    66,428,740.20/99,643,110.30 = 52,991,812.20/x
  3. Step 3: Cross multiply
    66,428,740.20x = 99,643,110.30 × 52,991,812.20
  4. Step 4: Simplify right side
    66,428,740.20x = 5,280,268,988,041,486
  5. Step 5: Solve for x
    x = 5,280,268,988,041,486/66,428,740.20
  6. Step 6: Final answer
    x = 79,487,718.30

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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.