Home / 65,853,008.40-98,779,512.60-42,894,757.20

Finding the Fourth Proportional to 65,853,008.40, 98,779,512.60 and 42,894,757.20

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Solution

The fourth proportional to 65,853,008.40, 98,779,512.60 and 42,894,757.20 is: 64,342,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,853,008.40 : 98,779,512.60 = 42,894,757.20 : x
  2. Step 2: Convert to fraction form
    65,853,008.40/98,779,512.60 = 42,894,757.20/x
  3. Step 3: Cross multiply
    65,853,008.40x = 98,779,512.60 × 42,894,757.20
  4. Step 4: Simplify right side
    65,853,008.40x = 4,237,123,209,311,341
  5. Step 5: Solve for x
    x = 4,237,123,209,311,341/65,853,008.40
  6. Step 6: Final answer
    x = 64,342,135.80

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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.