Home / 121,278,005.70-181,917,008.55-111,924,644.10

Finding the Fourth Proportional to 121,278,005.70, 181,917,008.55 and 111,924,644.10

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Solution

The fourth proportional to 121,278,005.70, 181,917,008.55 and 111,924,644.10 is: 167,886,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278,005.70 : 181,917,008.55 = 111,924,644.10 : x
  2. Step 2: Convert to fraction form
    121,278,005.70/181,917,008.55 = 111,924,644.10/x
  3. Step 3: Cross multiply
    121,278,005.70x = 181,917,008.55 × 111,924,644.10
  4. Step 4: Simplify right side
    121,278,005.70x = 20,360,996,437,695,408
  5. Step 5: Solve for x
    x = 20,360,996,437,695,408/121,278,005.70
  6. Step 6: Final answer
    x = 167,886,966.15

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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.