Home / 78,945,543.68-108,949,009.92-48,000,588.80

Finding the Fourth Proportional to 78,945,543.68, 108,949,009.92 and 48,000,588.80

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Solution

The fourth proportional to 78,945,543.68, 108,949,009.92 and 48,000,588.80 is: 66,243,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,945,543.68 : 108,949,009.92 = 48,000,588.80 : x
  2. Step 2: Convert to fraction form
    78,945,543.68/108,949,009.92 = 48,000,588.80/x
  3. Step 3: Cross multiply
    78,945,543.68x = 108,949,009.92 × 48,000,588.80
  4. Step 4: Simplify right side
    78,945,543.68x = 5,229,616,625,337,041
  5. Step 5: Solve for x
    x = 5,229,616,625,337,041/78,945,543.68
  6. Step 6: Final answer
    x = 66,243,341.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.