Home / 84,168,776.58-126,289,536.50-45,261,753.76

Finding the Fourth Proportional to 84,168,776.58, 126,289,536.50 and 45,261,753.76

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Solution

The fourth proportional to 84,168,776.58, 126,289,536.50 and 45,261,753.76 is: 67,912,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,168,776.58 : 126,289,536.50 = 45,261,753.76 : x
  2. Step 2: Convert to fraction form
    84,168,776.58/126,289,536.50 = 45,261,753.76/x
  3. Step 3: Cross multiply
    84,168,776.58x = 126,289,536.50 × 45,261,753.76
  4. Step 4: Simplify right side
    84,168,776.58x = 5,716,085,903,527,532
  5. Step 5: Solve for x
    x = 5,716,085,903,527,532/84,168,776.58
  6. Step 6: Final answer
    x = 67,912,189.48

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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.