Home / 132,645,755,393.64-198,766,168,679.28-78,756,772,655.16

Finding the Fourth Proportional to 132,645,755,393.64, 198,766,168,679.28 and 78,756,772,655.16

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Solution

The fourth proportional to 132,645,755,393.64, 198,766,168,679.28 and 78,756,772,655.16 is: 118,014,948,248.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,645,755,393.64 : 198,766,168,679.28 = 78,756,772,655.16 : x
  2. Step 2: Convert to fraction form
    132,645,755,393.64/198,766,168,679.28 = 78,756,772,655.16/x
  3. Step 3: Cross multiply
    132,645,755,393.64x = 198,766,168,679.28 × 78,756,772,655.16
  4. Step 4: Simplify right side
    132,645,755,393.64x = 15,654,181,958,211,239,673,856
  5. Step 5: Solve for x
    x = 15,654,181,958,211,239,673,856/132,645,755,393.64
  6. Step 6: Final answer
    x = 118,014,948,248.86

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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.