Home / 64,158,702.82-96,199,621.65-20,420,568.76

Finding the Fourth Proportional to 64,158,702.82, 96,199,621.65 and 20,420,568.76

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Solution

The fourth proportional to 64,158,702.82, 96,199,621.65 and 20,420,568.76 is: 30,618,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,158,702.82 : 96,199,621.65 = 20,420,568.76 : x
  2. Step 2: Convert to fraction form
    64,158,702.82/96,199,621.65 = 20,420,568.76/x
  3. Step 3: Cross multiply
    64,158,702.82x = 96,199,621.65 × 20,420,568.76
  4. Step 4: Simplify right side
    64,158,702.82x = 1,964,450,988,487,707
  5. Step 5: Solve for x
    x = 1,964,450,988,487,707/64,158,702.82
  6. Step 6: Final answer
    x = 30,618,620.73

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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.