Home / 72,654,998.40-108,859,172.40-43,840,587.60

Finding the Fourth Proportional to 72,654,998.40, 108,859,172.40 and 43,840,587.60

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Solution

The fourth proportional to 72,654,998.40, 108,859,172.40 and 43,840,587.60 is: 65,686,466.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654,998.40 : 108,859,172.40 = 43,840,587.60 : x
  2. Step 2: Convert to fraction form
    72,654,998.40/108,859,172.40 = 43,840,587.60/x
  3. Step 3: Cross multiply
    72,654,998.40x = 108,859,172.40 × 43,840,587.60
  4. Step 4: Simplify right side
    72,654,998.40x = 4,772,450,083,665,703
  5. Step 5: Solve for x
    x = 4,772,450,083,665,703/72,654,998.40
  6. Step 6: Final answer
    x = 65,686,466.02

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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.