Home / 712,392,979.20-1,066,321,987.20-508,319,635.20

Finding the Fourth Proportional to 712,392,979.20, 1,066,321,987.20 and 508,319,635.20

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Solution

The fourth proportional to 712,392,979.20, 1,066,321,987.20 and 508,319,635.20 is: 760,861,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,392,979.20 : 1,066,321,987.20 = 508,319,635.20 : x
  2. Step 2: Convert to fraction form
    712,392,979.20/1,066,321,987.20 = 508,319,635.20/x
  3. Step 3: Cross multiply
    712,392,979.20x = 1,066,321,987.20 × 508,319,635.20
  4. Step 4: Simplify right side
    712,392,979.20x = 542,032,403,539,243,072
  5. Step 5: Solve for x
    x = 542,032,403,539,243,072/712,392,979.20
  6. Step 6: Final answer
    x = 760,861,517.96

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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.