Home / 358,721,073.60-538,081,610.40-99,976,228.80

Finding the Fourth Proportional to 358,721,073.60, 538,081,610.40 and 99,976,228.80

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Solution

The fourth proportional to 358,721,073.60, 538,081,610.40 and 99,976,228.80 is: 149,964,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,721,073.60 : 538,081,610.40 = 99,976,228.80 : x
  2. Step 2: Convert to fraction form
    358,721,073.60/538,081,610.40 = 99,976,228.80/x
  3. Step 3: Cross multiply
    358,721,073.60x = 538,081,610.40 × 99,976,228.80
  4. Step 4: Simplify right side
    358,721,073.60x = 53,795,370,194,422,856
  5. Step 5: Solve for x
    x = 53,795,370,194,422,856/358,721,073.60
  6. Step 6: Final answer
    x = 149,964,343.20

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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.