Home / 82,998,005.20-124,497,007.80-42,687,221.20

Finding the Fourth Proportional to 82,998,005.20, 124,497,007.80 and 42,687,221.20

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Solution

The fourth proportional to 82,998,005.20, 124,497,007.80 and 42,687,221.20 is: 64,030,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,998,005.20 : 124,497,007.80 = 42,687,221.20 : x
  2. Step 2: Convert to fraction form
    82,998,005.20/124,497,007.80 = 42,687,221.20/x
  3. Step 3: Cross multiply
    82,998,005.20x = 124,497,007.80 × 42,687,221.20
  4. Step 4: Simplify right side
    82,998,005.20x = 5,314,431,310,696,726
  5. Step 5: Solve for x
    x = 5,314,431,310,696,726/82,998,005.20
  6. Step 6: Final answer
    x = 64,030,831.80

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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.