Home / 52,002,420.60-78,003,630.90-39,153,358.20

Finding the Fourth Proportional to 52,002,420.60, 78,003,630.90 and 39,153,358.20

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Solution

The fourth proportional to 52,002,420.60, 78,003,630.90 and 39,153,358.20 is: 58,730,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,002,420.60 : 78,003,630.90 = 39,153,358.20 : x
  2. Step 2: Convert to fraction form
    52,002,420.60/78,003,630.90 = 39,153,358.20/x
  3. Step 3: Cross multiply
    52,002,420.60x = 78,003,630.90 × 39,153,358.20
  4. Step 4: Simplify right side
    52,002,420.60x = 3,054,104,101,528,289
  5. Step 5: Solve for x
    x = 3,054,104,101,528,289/52,002,420.60
  6. Step 6: Final answer
    x = 58,730,037.30

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Similar ratio
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1.5x scale

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.