Home / 486,278,636.80-729,417,955.20-145,876,460.80

Finding the Fourth Proportional to 486,278,636.80, 729,417,955.20 and 145,876,460.80

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Solution

The fourth proportional to 486,278,636.80, 729,417,955.20 and 145,876,460.80 is: 218,814,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,278,636.80 : 729,417,955.20 = 145,876,460.80 : x
  2. Step 2: Convert to fraction form
    486,278,636.80/729,417,955.20 = 145,876,460.80/x
  3. Step 3: Cross multiply
    486,278,636.80x = 729,417,955.20 × 145,876,460.80
  4. Step 4: Simplify right side
    486,278,636.80x = 106,404,909,748,548,976
  5. Step 5: Solve for x
    x = 106,404,909,748,548,976/486,278,636.80
  6. Step 6: Final answer
    x = 218,814,691.20

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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.