Home / 113,428,934.60-170,348,688.30-99,320,160.20

Finding the Fourth Proportional to 113,428,934.60, 170,348,688.30 and 99,320,160.20

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Solution

The fourth proportional to 113,428,934.60, 170,348,688.30 and 99,320,160.20 is: 149,159,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,428,934.60 : 170,348,688.30 = 99,320,160.20 : x
  2. Step 2: Convert to fraction form
    113,428,934.60/170,348,688.30 = 99,320,160.20/x
  3. Step 3: Cross multiply
    113,428,934.60x = 170,348,688.30 × 99,320,160.20
  4. Step 4: Simplify right side
    113,428,934.60x = 16,919,059,011,815,868
  5. Step 5: Solve for x
    x = 16,919,059,011,815,868/113,428,934.60
  6. Step 6: Final answer
    x = 149,159,992.30

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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.