Home / 100,666,764.39-138,918,818.01-56,613,750

Finding the Fourth Proportional to 100,666,764.39, 138,918,818.01 and 56,613,750

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Solution

The fourth proportional to 100,666,764.39, 138,918,818.01 and 56,613,750 is: 78,126,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,666,764.39 : 138,918,818.01 = 56,613,750 : x
  2. Step 2: Convert to fraction form
    100,666,764.39/138,918,818.01 = 56,613,750/x
  3. Step 3: Cross multiply
    100,666,764.39x = 138,918,818.01 × 56,613,750
  4. Step 4: Simplify right side
    100,666,764.39x = 7,864,715,233,113,637
  5. Step 5: Solve for x
    x = 7,864,715,233,113,637/100,666,764.39
  6. Step 6: Final answer
    x = 78,126,234.42

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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.