Home / 65,739,914.52-90,750,138.84-39,287,600.16

Finding the Fourth Proportional to 65,739,914.52, 90,750,138.84 and 39,287,600.16

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Solution

The fourth proportional to 65,739,914.52, 90,750,138.84 and 39,287,600.16 is: 54,234,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,739,914.52 : 90,750,138.84 = 39,287,600.16 : x
  2. Step 2: Convert to fraction form
    65,739,914.52/90,750,138.84 = 39,287,600.16/x
  3. Step 3: Cross multiply
    65,739,914.52x = 90,750,138.84 × 39,287,600.16
  4. Step 4: Simplify right side
    65,739,914.52x = 3,565,355,169,210,406
  5. Step 5: Solve for x
    x = 3,565,355,169,210,406/65,739,914.52
  6. Step 6: Final answer
    x = 54,234,253.20

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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.