Home / 660,832,930.44-991,362,326.87-272,443,447.35

Finding the Fourth Proportional to 660,832,930.44, 991,362,326.87 and 272,443,447.35

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Solution

The fourth proportional to 660,832,930.44, 991,362,326.87 and 272,443,447.35 is: 408,711,729.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,832,930.44 : 991,362,326.87 = 272,443,447.35 : x
  2. Step 2: Convert to fraction form
    660,832,930.44/991,362,326.87 = 272,443,447.35/x
  3. Step 3: Cross multiply
    660,832,930.44x = 991,362,326.87 × 272,443,447.35
  4. Step 4: Simplify right side
    660,832,930.44x = 270,090,169,906,061,440
  5. Step 5: Solve for x
    x = 270,090,169,906,061,440/660,832,930.44
  6. Step 6: Final answer
    x = 408,711,729.49

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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.