Home / 72,406,456.80-108,609,685.20-49,448,205.60

Finding the Fourth Proportional to 72,406,456.80, 108,609,685.20 and 49,448,205.60

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Solution

The fourth proportional to 72,406,456.80, 108,609,685.20 and 49,448,205.60 is: 74,172,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,406,456.80 : 108,609,685.20 = 49,448,205.60 : x
  2. Step 2: Convert to fraction form
    72,406,456.80/108,609,685.20 = 49,448,205.60/x
  3. Step 3: Cross multiply
    72,406,456.80x = 108,609,685.20 × 49,448,205.60
  4. Step 4: Simplify right side
    72,406,456.80x = 5,370,554,043,920,877
  5. Step 5: Solve for x
    x = 5,370,554,043,920,877/72,406,456.80
  6. Step 6: Final answer
    x = 74,172,308.40

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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.