Home / 72,326,560.40-108,489,840.60-43,605,126.80

Finding the Fourth Proportional to 72,326,560.40, 108,489,840.60 and 43,605,126.80

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Solution

The fourth proportional to 72,326,560.40, 108,489,840.60 and 43,605,126.80 is: 65,407,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,326,560.40 : 108,489,840.60 = 43,605,126.80 : x
  2. Step 2: Convert to fraction form
    72,326,560.40/108,489,840.60 = 43,605,126.80/x
  3. Step 3: Cross multiply
    72,326,560.40x = 108,489,840.60 × 43,605,126.80
  4. Step 4: Simplify right side
    72,326,560.40x = 4,730,713,255,874,787
  5. Step 5: Solve for x
    x = 4,730,713,255,874,787/72,326,560.40
  6. Step 6: Final answer
    x = 65,407,690.20

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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.