Home / 138,931,581.62-208,429,115.80-48,055,093.94

Finding the Fourth Proportional to 138,931,581.62, 208,429,115.80 and 48,055,093.94

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Solution

The fourth proportional to 138,931,581.62, 208,429,115.80 and 48,055,093.94 is: 72,093,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,931,581.62 : 208,429,115.80 = 48,055,093.94 : x
  2. Step 2: Convert to fraction form
    138,931,581.62/208,429,115.80 = 48,055,093.94/x
  3. Step 3: Cross multiply
    138,931,581.62x = 208,429,115.80 × 48,055,093.94
  4. Step 4: Simplify right side
    138,931,581.62x = 10,016,080,739,600,138
  5. Step 5: Solve for x
    x = 10,016,080,739,600,138/138,931,581.62
  6. Step 6: Final answer
    x = 72,093,620.64

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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.