Home / 42,580,928.08-63,871,392.12-13,437,720.78

Finding the Fourth Proportional to 42,580,928.08, 63,871,392.12 and 13,437,720.78

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Solution

The fourth proportional to 42,580,928.08, 63,871,392.12 and 13,437,720.78 is: 20,156,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,580,928.08 : 63,871,392.12 = 13,437,720.78 : x
  2. Step 2: Convert to fraction form
    42,580,928.08/63,871,392.12 = 13,437,720.78/x
  3. Step 3: Cross multiply
    42,580,928.08x = 63,871,392.12 × 13,437,720.78
  4. Step 4: Simplify right side
    42,580,928.08x = 858,285,933,138,452.12
  5. Step 5: Solve for x
    x = 858,285,933,138,452.12/42,580,928.08
  6. Step 6: Final answer
    x = 20,156,581.17

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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.