Home / 538,272,910.80-807,409,366.20-442,613,530.80

Finding the Fourth Proportional to 538,272,910.80, 807,409,366.20 and 442,613,530.80

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Solution

The fourth proportional to 538,272,910.80, 807,409,366.20 and 442,613,530.80 is: 663,920,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,272,910.80 : 807,409,366.20 = 442,613,530.80 : x
  2. Step 2: Convert to fraction form
    538,272,910.80/807,409,366.20 = 442,613,530.80/x
  3. Step 3: Cross multiply
    538,272,910.80x = 807,409,366.20 × 442,613,530.80
  4. Step 4: Simplify right side
    538,272,910.80x = 357,370,310,374,772,224
  5. Step 5: Solve for x
    x = 357,370,310,374,772,224/538,272,910.80
  6. Step 6: Final answer
    x = 663,920,296.20

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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.