Home / 66,429,466.80-99,644,200.20-39,107,713.20

Finding the Fourth Proportional to 66,429,466.80, 99,644,200.20 and 39,107,713.20

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Solution

The fourth proportional to 66,429,466.80, 99,644,200.20 and 39,107,713.20 is: 58,661,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,466.80 : 99,644,200.20 = 39,107,713.20 : x
  2. Step 2: Convert to fraction form
    66,429,466.80/99,644,200.20 = 39,107,713.20/x
  3. Step 3: Cross multiply
    66,429,466.80x = 99,644,200.20 × 39,107,713.20
  4. Step 4: Simplify right side
    66,429,466.80x = 3,896,856,803,464,983
  5. Step 5: Solve for x
    x = 3,896,856,803,464,983/66,429,466.80
  6. Step 6: Final answer
    x = 58,661,569.80

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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.