Home / 82,787,703.90-124,181,555.85-81,444,011.10

Finding the Fourth Proportional to 82,787,703.90, 124,181,555.85 and 81,444,011.10

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Solution

The fourth proportional to 82,787,703.90, 124,181,555.85 and 81,444,011.10 is: 122,166,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,787,703.90 : 124,181,555.85 = 81,444,011.10 : x
  2. Step 2: Convert to fraction form
    82,787,703.90/124,181,555.85 = 81,444,011.10/x
  3. Step 3: Cross multiply
    82,787,703.90x = 124,181,555.85 × 81,444,011.10
  4. Step 4: Simplify right side
    82,787,703.90x = 10,113,844,013,062,668
  5. Step 5: Solve for x
    x = 10,113,844,013,062,668/82,787,703.90
  6. Step 6: Final answer
    x = 122,166,016.65

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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.