Home / 42,607,235.40-63,868,862.70-21,024,169.80

Finding the Fourth Proportional to 42,607,235.40, 63,868,862.70 and 21,024,169.80

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Solution

The fourth proportional to 42,607,235.40, 63,868,862.70 and 21,024,169.80 is: 31,515,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,607,235.40 : 63,868,862.70 = 21,024,169.80 : x
  2. Step 2: Convert to fraction form
    42,607,235.40/63,868,862.70 = 21,024,169.80/x
  3. Step 3: Cross multiply
    42,607,235.40x = 63,868,862.70 × 21,024,169.80
  4. Step 4: Simplify right side
    42,607,235.40x = 1,342,789,814,337,686.50
  5. Step 5: Solve for x
    x = 1,342,789,814,337,686.50/42,607,235.40
  6. Step 6: Final answer
    x = 31,515,534.90

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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.