Home / 66,429,885.20-99,686,818.20-39,136,125.20

Finding the Fourth Proportional to 66,429,885.20, 99,686,818.20 and 39,136,125.20

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Solution

The fourth proportional to 66,429,885.20, 99,686,818.20 and 39,136,125.20 is: 58,728,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,885.20 : 99,686,818.20 = 39,136,125.20 : x
  2. Step 2: Convert to fraction form
    66,429,885.20/99,686,818.20 = 39,136,125.20/x
  3. Step 3: Cross multiply
    66,429,885.20x = 99,686,818.20 × 39,136,125.20
  4. Step 4: Simplify right side
    66,429,885.20x = 3,901,355,797,864,839
  5. Step 5: Solve for x
    x = 3,901,355,797,864,839/66,429,885.20
  6. Step 6: Final answer
    x = 58,728,925.79

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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.