Home / 65,193,998.40-97,790,997.60-42,235,747.20

Finding the Fourth Proportional to 65,193,998.40, 97,790,997.60 and 42,235,747.20

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Solution

The fourth proportional to 65,193,998.40, 97,790,997.60 and 42,235,747.20 is: 63,353,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,193,998.40 : 97,790,997.60 = 42,235,747.20 : x
  2. Step 2: Convert to fraction form
    65,193,998.40/97,790,997.60 = 42,235,747.20/x
  3. Step 3: Cross multiply
    65,193,998.40x = 97,790,997.60 × 42,235,747.20
  4. Step 4: Simplify right side
    65,193,998.40x = 4,130,275,853,069,407
  5. Step 5: Solve for x
    x = 4,130,275,853,069,407/65,193,998.40
  6. Step 6: Final answer
    x = 63,353,620.80

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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.