Home / 168,488,139.40-252,732,209.10-82,281,848.20

Finding the Fourth Proportional to 168,488,139.40, 252,732,209.10 and 82,281,848.20

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Solution

The fourth proportional to 168,488,139.40, 252,732,209.10 and 82,281,848.20 is: 123,422,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,488,139.40 : 252,732,209.10 = 82,281,848.20 : x
  2. Step 2: Convert to fraction form
    168,488,139.40/252,732,209.10 = 82,281,848.20/x
  3. Step 3: Cross multiply
    168,488,139.40x = 252,732,209.10 × 82,281,848.20
  4. Step 4: Simplify right side
    168,488,139.40x = 20,795,273,264,416,860
  5. Step 5: Solve for x
    x = 20,795,273,264,416,860/168,488,139.40
  6. Step 6: Final answer
    x = 123,422,772.30

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1.5x scale

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.