Home / 57,575,319.63-86,378,127.15-20,690,935.86

Finding the Fourth Proportional to 57,575,319.63, 86,378,127.15 and 20,690,935.86

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Solution

The fourth proportional to 57,575,319.63, 86,378,127.15 and 20,690,935.86 is: 31,041,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,575,319.63 : 86,378,127.15 = 20,690,935.86 : x
  2. Step 2: Convert to fraction form
    57,575,319.63/86,378,127.15 = 20,690,935.86/x
  3. Step 3: Cross multiply
    57,575,319.63x = 86,378,127.15 × 20,690,935.86
  4. Step 4: Simplify right side
    57,575,319.63x = 1,787,244,288,567,574.75
  5. Step 5: Solve for x
    x = 1,787,244,288,567,574.75/57,575,319.63
  6. Step 6: Final answer
    x = 31,041,847.45

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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.