Home / 42,531,832.80-63,797,749.20-19,815,026.40

Finding the Fourth Proportional to 42,531,832.80, 63,797,749.20 and 19,815,026.40

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Solution

The fourth proportional to 42,531,832.80, 63,797,749.20 and 19,815,026.40 is: 29,722,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,531,832.80 : 63,797,749.20 = 19,815,026.40 : x
  2. Step 2: Convert to fraction form
    42,531,832.80/63,797,749.20 = 19,815,026.40/x
  3. Step 3: Cross multiply
    42,531,832.80x = 63,797,749.20 × 19,815,026.40
  4. Step 4: Simplify right side
    42,531,832.80x = 1,264,154,084,658,578.75
  5. Step 5: Solve for x
    x = 1,264,154,084,658,578.75/42,531,832.80
  6. Step 6: Final answer
    x = 29,722,539.60

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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.