Home / 72,580,612.20-108,870,918.30-65,190,301.80

Finding the Fourth Proportional to 72,580,612.20, 108,870,918.30 and 65,190,301.80

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Solution

The fourth proportional to 72,580,612.20, 108,870,918.30 and 65,190,301.80 is: 97,785,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580,612.20 : 108,870,918.30 = 65,190,301.80 : x
  2. Step 2: Convert to fraction form
    72,580,612.20/108,870,918.30 = 65,190,301.80/x
  3. Step 3: Cross multiply
    72,580,612.20x = 108,870,918.30 × 65,190,301.80
  4. Step 4: Simplify right side
    72,580,612.20x = 7,097,328,021,220,142
  5. Step 5: Solve for x
    x = 7,097,328,021,220,142/72,580,612.20
  6. Step 6: Final answer
    x = 97,785,452.70

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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.