Home / 66,520,036.72-99,780,286.52-20,461,593.16

Finding the Fourth Proportional to 66,520,036.72, 99,780,286.52 and 20,461,593.16

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Solution

The fourth proportional to 66,520,036.72, 99,780,286.52 and 20,461,593.16 is: 30,692,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520,036.72 : 99,780,286.52 = 20,461,593.16 : x
  2. Step 2: Convert to fraction form
    66,520,036.72/99,780,286.52 = 20,461,593.16/x
  3. Step 3: Cross multiply
    66,520,036.72x = 99,780,286.52 × 20,461,593.16
  4. Step 4: Simplify right side
    66,520,036.72x = 2,041,663,628,160,472.25
  5. Step 5: Solve for x
    x = 2,041,663,628,160,472.25/66,520,036.72
  6. Step 6: Final answer
    x = 30,692,460.93

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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.