Home / 42,572,987.60-63,859,481.40-18,685,115.60

Finding the Fourth Proportional to 42,572,987.60, 63,859,481.40 and 18,685,115.60

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Solution

The fourth proportional to 42,572,987.60, 63,859,481.40 and 18,685,115.60 is: 28,027,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,572,987.60 : 63,859,481.40 = 18,685,115.60 : x
  2. Step 2: Convert to fraction form
    42,572,987.60/63,859,481.40 = 18,685,115.60/x
  3. Step 3: Cross multiply
    42,572,987.60x = 63,859,481.40 × 18,685,115.60
  4. Step 4: Simplify right side
    42,572,987.60x = 1,193,221,792,115,050
  5. Step 5: Solve for x
    x = 1,193,221,792,115,050/42,572,987.60
  6. Step 6: Final answer
    x = 28,027,673.40

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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.