Home / 82,721,401.80-124,082,102.70-52,110,400.20

Finding the Fourth Proportional to 82,721,401.80, 124,082,102.70 and 52,110,400.20

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Solution

The fourth proportional to 82,721,401.80, 124,082,102.70 and 52,110,400.20 is: 78,165,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,721,401.80 : 124,082,102.70 = 52,110,400.20 : x
  2. Step 2: Convert to fraction form
    82,721,401.80/124,082,102.70 = 52,110,400.20/x
  3. Step 3: Cross multiply
    82,721,401.80x = 124,082,102.70 × 52,110,400.20
  4. Step 4: Simplify right side
    82,721,401.80x = 6,465,968,029,354,501
  5. Step 5: Solve for x
    x = 6,465,968,029,354,501/82,721,401.80
  6. Step 6: Final answer
    x = 78,165,600.30

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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.