Home / 391,206,422.60-586,809,633.90-187,133,078.60

Finding the Fourth Proportional to 391,206,422.60, 586,809,633.90 and 187,133,078.60

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Solution

The fourth proportional to 391,206,422.60, 586,809,633.90 and 187,133,078.60 is: 280,699,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,206,422.60 : 586,809,633.90 = 187,133,078.60 : x
  2. Step 2: Convert to fraction form
    391,206,422.60/586,809,633.90 = 187,133,078.60/x
  3. Step 3: Cross multiply
    391,206,422.60x = 586,809,633.90 × 187,133,078.60
  4. Step 4: Simplify right side
    391,206,422.60x = 109,811,493,343,845,920
  5. Step 5: Solve for x
    x = 109,811,493,343,845,920/391,206,422.60
  6. Step 6: Final answer
    x = 280,699,617.90

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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.