Home / 242,919,079.68-335,219,992.20-138,530,748.45

Finding the Fourth Proportional to 242,919,079.68, 335,219,992.20 and 138,530,748.45

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Solution

The fourth proportional to 242,919,079.68, 335,219,992.20 and 138,530,748.45 is: 191,167,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,919,079.68 : 335,219,992.20 = 138,530,748.45 : x
  2. Step 2: Convert to fraction form
    242,919,079.68/335,219,992.20 = 138,530,748.45/x
  3. Step 3: Cross multiply
    242,919,079.68x = 335,219,992.20 × 138,530,748.45
  4. Step 4: Simplify right side
    242,919,079.68x = 46,438,276,414,869,160
  5. Step 5: Solve for x
    x = 46,438,276,414,869,160/242,919,079.68
  6. Step 6: Final answer
    x = 191,167,678.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.