Home / 391,230,230.80-586,845,346.20-352,263,139.60

Finding the Fourth Proportional to 391,230,230.80, 586,845,346.20 and 352,263,139.60

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Solution

The fourth proportional to 391,230,230.80, 586,845,346.20 and 352,263,139.60 is: 528,394,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,230,230.80 : 586,845,346.20 = 352,263,139.60 : x
  2. Step 2: Convert to fraction form
    391,230,230.80/586,845,346.20 = 352,263,139.60/x
  3. Step 3: Cross multiply
    391,230,230.80x = 586,845,346.20 × 352,263,139.60
  4. Step 4: Simplify right side
    391,230,230.80x = 206,723,984,112,060,960
  5. Step 5: Solve for x
    x = 206,723,984,112,060,960/391,230,230.80
  6. Step 6: Final answer
    x = 528,394,709.40

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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.