Home / 358,888,347.48-538,428,217.46-128,859,425.04

Finding the Fourth Proportional to 358,888,347.48, 538,428,217.46 and 128,859,425.04

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Solution

The fourth proportional to 358,888,347.48, 538,428,217.46 and 128,859,425.04 is: 193,323,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,888,347.48 : 538,428,217.46 = 128,859,425.04 : x
  2. Step 2: Convert to fraction form
    358,888,347.48/538,428,217.46 = 128,859,425.04/x
  3. Step 3: Cross multiply
    358,888,347.48x = 538,428,217.46 × 128,859,425.04
  4. Step 4: Simplify right side
    358,888,347.48x = 69,381,550,526,563,400
  5. Step 5: Solve for x
    x = 69,381,550,526,563,400/358,888,347.48
  6. Step 6: Final answer
    x = 193,323,497.44

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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.