Home / 120,605,213.80-181,355,718.30-100,897,719.40

Finding the Fourth Proportional to 120,605,213.80, 181,355,718.30 and 100,897,719.40

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Solution

The fourth proportional to 120,605,213.80, 181,355,718.30 and 100,897,719.40 is: 151,721,287.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,605,213.80 : 181,355,718.30 = 100,897,719.40 : x
  2. Step 2: Convert to fraction form
    120,605,213.80/181,355,718.30 = 100,897,719.40/x
  3. Step 3: Cross multiply
    120,605,213.80x = 181,355,718.30 × 100,897,719.40
  4. Step 4: Simplify right side
    120,605,213.80x = 18,298,378,376,618,848
  5. Step 5: Solve for x
    x = 18,298,378,376,618,848/120,605,213.80
  6. Step 6: Final answer
    x = 151,721,287.99

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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.