Home / 42,638,686.98-63,958,041.40-11,937,789.35

Finding the Fourth Proportional to 42,638,686.98, 63,958,041.40 and 11,937,789.35

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Solution

The fourth proportional to 42,638,686.98, 63,958,041.40 and 11,937,789.35 is: 17,906,687.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,638,686.98 : 63,958,041.40 = 11,937,789.35 : x
  2. Step 2: Convert to fraction form
    42,638,686.98/63,958,041.40 = 11,937,789.35/x
  3. Step 3: Cross multiply
    42,638,686.98x = 63,958,041.40 × 11,937,789.35
  4. Step 4: Simplify right side
    42,638,686.98x = 763,517,625,471,779
  5. Step 5: Solve for x
    x = 763,517,625,471,779/42,638,686.98
  6. Step 6: Final answer
    x = 17,906,687.09

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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.