Home / 66,129,610.40-99,017,468.40-42,064,791.20

Finding the Fourth Proportional to 66,129,610.40, 99,017,468.40 and 42,064,791.20

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Solution

The fourth proportional to 66,129,610.40, 99,017,468.40 and 42,064,791.20 is: 62,984,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,129,610.40 : 99,017,468.40 = 42,064,791.20 : x
  2. Step 2: Convert to fraction form
    66,129,610.40/99,017,468.40 = 42,064,791.20/x
  3. Step 3: Cross multiply
    66,129,610.40x = 99,017,468.40 × 42,064,791.20
  4. Step 4: Simplify right side
    66,129,610.40x = 4,165,149,133,398,598.50
  5. Step 5: Solve for x
    x = 4,165,149,133,398,598.50/66,129,610.40
  6. Step 6: Final answer
    x = 62,984,631.37

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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.