Home / 82,721,421.80-124,082,132.70-52,110,420.20

Finding the Fourth Proportional to 82,721,421.80, 124,082,132.70 and 52,110,420.20

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Solution

The fourth proportional to 82,721,421.80, 124,082,132.70 and 52,110,420.20 is: 78,165,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,721,421.80 : 124,082,132.70 = 52,110,420.20 : x
  2. Step 2: Convert to fraction form
    82,721,421.80/124,082,132.70 = 52,110,420.20/x
  3. Step 3: Cross multiply
    82,721,421.80x = 124,082,132.70 × 52,110,420.20
  4. Step 4: Simplify right side
    82,721,421.80x = 6,465,972,074,309,161
  5. Step 5: Solve for x
    x = 6,465,972,074,309,161/82,721,421.80
  6. Step 6: Final answer
    x = 78,165,630.30

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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.