Home / 132,645,755,393.14-198,766,168,678.53-78,756,772,654.66

Finding the Fourth Proportional to 132,645,755,393.14, 198,766,168,678.53 and 78,756,772,654.66

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Solution

The fourth proportional to 132,645,755,393.14, 198,766,168,678.53 and 78,756,772,654.66 is: 118,014,948,248.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,645,755,393.14 : 198,766,168,678.53 = 78,756,772,654.66 : x
  2. Step 2: Convert to fraction form
    132,645,755,393.14/198,766,168,678.53 = 78,756,772,654.66/x
  3. Step 3: Cross multiply
    132,645,755,393.14x = 198,766,168,678.53 × 78,756,772,654.66
  4. Step 4: Simplify right side
    132,645,755,393.14x = 15,654,181,958,052,789,354,496
  5. Step 5: Solve for x
    x = 15,654,181,958,052,789,354,496/132,645,755,393.14
  6. Step 6: Final answer
    x = 118,014,948,248.11

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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.