Home / 128,952,854.20-193,429,281.30-112,156,694.20

Finding the Fourth Proportional to 128,952,854.20, 193,429,281.30 and 112,156,694.20

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Solution

The fourth proportional to 128,952,854.20, 193,429,281.30 and 112,156,694.20 is: 168,235,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,952,854.20 : 193,429,281.30 = 112,156,694.20 : x
  2. Step 2: Convert to fraction form
    128,952,854.20/193,429,281.30 = 112,156,694.20/x
  3. Step 3: Cross multiply
    128,952,854.20x = 193,429,281.30 × 112,156,694.20
  4. Step 4: Simplify right side
    128,952,854.20x = 21,694,388,752,089,880
  5. Step 5: Solve for x
    x = 21,694,388,752,089,880/128,952,854.20
  6. Step 6: Final answer
    x = 168,235,041.30

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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.