Home / 391,103,051.40-586,654,577.10-148,734,462.60

Finding the Fourth Proportional to 391,103,051.40, 586,654,577.10 and 148,734,462.60

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Solution

The fourth proportional to 391,103,051.40, 586,654,577.10 and 148,734,462.60 is: 223,101,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,103,051.40 : 586,654,577.10 = 148,734,462.60 : x
  2. Step 2: Convert to fraction form
    391,103,051.40/586,654,577.10 = 148,734,462.60/x
  3. Step 3: Cross multiply
    391,103,051.40x = 586,654,577.10 × 148,734,462.60
  4. Step 4: Simplify right side
    391,103,051.40x = 87,255,753,256,798,768
  5. Step 5: Solve for x
    x = 87,255,753,256,798,768/391,103,051.40
  6. Step 6: Final answer
    x = 223,101,693.90

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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.