Home / 853,505,713.95-1,281,215,164.73-660,273,766.35

Finding the Fourth Proportional to 853,505,713.95, 1,281,215,164.73 and 660,273,766.35

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Solution

The fourth proportional to 853,505,713.95, 1,281,215,164.73 and 660,273,766.35 is: 991,150,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,505,713.95 : 1,281,215,164.73 = 660,273,766.35 : x
  2. Step 2: Convert to fraction form
    853,505,713.95/1,281,215,164.73 = 660,273,766.35/x
  3. Step 3: Cross multiply
    853,505,713.95x = 1,281,215,164.73 × 660,273,766.35
  4. Step 4: Simplify right side
    853,505,713.95x = 845,952,762,317,711,360
  5. Step 5: Solve for x
    x = 845,952,762,317,711,360/853,505,713.95
  6. Step 6: Final answer
    x = 991,150,672.45

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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.