Home / 52,064,564.20-78,122,436.92-20,938,978.88

Finding the Fourth Proportional to 52,064,564.20, 78,122,436.92 and 20,938,978.88

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Solution

The fourth proportional to 52,064,564.20, 78,122,436.92 and 20,938,978.88 is: 31,418,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,064,564.20 : 78,122,436.92 = 20,938,978.88 : x
  2. Step 2: Convert to fraction form
    52,064,564.20/78,122,436.92 = 20,938,978.88/x
  3. Step 3: Cross multiply
    52,064,564.20x = 78,122,436.92 × 20,938,978.88
  4. Step 4: Simplify right side
    52,064,564.20x = 1,635,804,056,722,012.25
  5. Step 5: Solve for x
    x = 1,635,804,056,722,012.25/52,064,564.20
  6. Step 6: Final answer
    x = 31,418,760.18

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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.