Home / 9,109,708.96-12,572,648.40-5,242,151.20

Finding the Fourth Proportional to 9,109,708.96, 12,572,648.40 and 5,242,151.20

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Solution

The fourth proportional to 9,109,708.96, 12,572,648.40 and 5,242,151.20 is: 7,234,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109,708.96 : 12,572,648.40 = 5,242,151.20 : x
  2. Step 2: Convert to fraction form
    9,109,708.96/12,572,648.40 = 5,242,151.20/x
  3. Step 3: Cross multiply
    9,109,708.96x = 12,572,648.40 × 5,242,151.20
  4. Step 4: Simplify right side
    9,109,708.96x = 65,907,723,897,238.09
  5. Step 5: Solve for x
    x = 65,907,723,897,238.09/9,109,708.96
  6. Step 6: Final answer
    x = 7,234,887.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.