Home / 142,368,005.20-213,552,007.80-124,452,101.20

Finding the Fourth Proportional to 142,368,005.20, 213,552,007.80 and 124,452,101.20

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Solution

The fourth proportional to 142,368,005.20, 213,552,007.80 and 124,452,101.20 is: 186,678,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,368,005.20 : 213,552,007.80 = 124,452,101.20 : x
  2. Step 2: Convert to fraction form
    142,368,005.20/213,552,007.80 = 124,452,101.20/x
  3. Step 3: Cross multiply
    142,368,005.20x = 213,552,007.80 × 124,452,101.20
  4. Step 4: Simplify right side
    142,368,005.20x = 26,576,996,086,188,792
  5. Step 5: Solve for x
    x = 26,576,996,086,188,792/142,368,005.20
  6. Step 6: Final answer
    x = 186,678,151.80

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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.