Home / 79,438,697.71-119,157,871.60-21,146,388.77

Finding the Fourth Proportional to 79,438,697.71, 119,157,871.60 and 21,146,388.77

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Solution

The fourth proportional to 79,438,697.71, 119,157,871.60 and 21,146,388.77 is: 31,719,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,438,697.71 : 119,157,871.60 = 21,146,388.77 : x
  2. Step 2: Convert to fraction form
    79,438,697.71/119,157,871.60 = 21,146,388.77/x
  3. Step 3: Cross multiply
    79,438,697.71x = 119,157,871.60 × 21,146,388.77
  4. Step 4: Simplify right side
    79,438,697.71x = 2,519,758,677,859,342
  5. Step 5: Solve for x
    x = 2,519,758,677,859,342/79,438,697.71
  6. Step 6: Final answer
    x = 31,719,536.58

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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.