Home / 170,127,335.20-255,191,002.80-79,260,109.60

Finding the Fourth Proportional to 170,127,335.20, 255,191,002.80 and 79,260,109.60

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Solution

The fourth proportional to 170,127,335.20, 255,191,002.80 and 79,260,109.60 is: 118,890,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,127,335.20 : 255,191,002.80 = 79,260,109.60 : x
  2. Step 2: Convert to fraction form
    170,127,335.20/255,191,002.80 = 79,260,109.60/x
  3. Step 3: Cross multiply
    170,127,335.20x = 255,191,002.80 × 79,260,109.60
  4. Step 4: Simplify right side
    170,127,335.20x = 20,226,466,850,861,908
  5. Step 5: Solve for x
    x = 20,226,466,850,861,908/170,127,335.20
  6. Step 6: Final answer
    x = 118,890,164.40

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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.