Home / 72,168,540.30-108,252,810.45-65,002,178.70

Finding the Fourth Proportional to 72,168,540.30, 108,252,810.45 and 65,002,178.70

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Solution

The fourth proportional to 72,168,540.30, 108,252,810.45 and 65,002,178.70 is: 97,503,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,168,540.30 : 108,252,810.45 = 65,002,178.70 : x
  2. Step 2: Convert to fraction form
    72,168,540.30/108,252,810.45 = 65,002,178.70/x
  3. Step 3: Cross multiply
    72,168,540.30x = 108,252,810.45 × 65,002,178.70
  4. Step 4: Simplify right side
    72,168,540.30x = 7,036,668,529,648,128
  5. Step 5: Solve for x
    x = 7,036,668,529,648,128/72,168,540.30
  6. Step 6: Final answer
    x = 97,503,268.05

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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.