Home / 42,546,643.20-63,819,964.80-42,227,778.60

Finding the Fourth Proportional to 42,546,643.20, 63,819,964.80 and 42,227,778.60

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Solution

The fourth proportional to 42,546,643.20, 63,819,964.80 and 42,227,778.60 is: 63,341,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,546,643.20 : 63,819,964.80 = 42,227,778.60 : x
  2. Step 2: Convert to fraction form
    42,546,643.20/63,819,964.80 = 42,227,778.60/x
  3. Step 3: Cross multiply
    42,546,643.20x = 63,819,964.80 × 42,227,778.60
  4. Step 4: Simplify right side
    42,546,643.20x = 2,694,975,343,834,193
  5. Step 5: Solve for x
    x = 2,694,975,343,834,193/42,546,643.20
  6. Step 6: Final answer
    x = 63,341,667.90

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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.