Home / 42,093,028.80-63,139,543.20-19,418,212.80

Finding the Fourth Proportional to 42,093,028.80, 63,139,543.20 and 19,418,212.80

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Solution

The fourth proportional to 42,093,028.80, 63,139,543.20 and 19,418,212.80 is: 29,127,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,093,028.80 : 63,139,543.20 = 19,418,212.80 : x
  2. Step 2: Convert to fraction form
    42,093,028.80/63,139,543.20 = 19,418,212.80/x
  3. Step 3: Cross multiply
    42,093,028.80x = 63,139,543.20 × 19,418,212.80
  4. Step 4: Simplify right side
    42,093,028.80x = 1,226,057,085,952,393
  5. Step 5: Solve for x
    x = 1,226,057,085,952,393/42,093,028.80
  6. Step 6: Final answer
    x = 29,127,319.20

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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.