Home / 214,437,964.80-321,656,947.20-178,725,129.60

Finding the Fourth Proportional to 214,437,964.80, 321,656,947.20 and 178,725,129.60

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Solution

The fourth proportional to 214,437,964.80, 321,656,947.20 and 178,725,129.60 is: 268,087,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,437,964.80 : 321,656,947.20 = 178,725,129.60 : x
  2. Step 2: Convert to fraction form
    214,437,964.80/321,656,947.20 = 178,725,129.60/x
  3. Step 3: Cross multiply
    214,437,964.80x = 321,656,947.20 × 178,725,129.60
  4. Step 4: Simplify right side
    214,437,964.80x = 57,488,179,575,060,352
  5. Step 5: Solve for x
    x = 57,488,179,575,060,352/214,437,964.80
  6. Step 6: Final answer
    x = 268,087,694.40

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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.