Home / 79,290,107.20-118,935,160.80-55,103,636.80

Finding the Fourth Proportional to 79,290,107.20, 118,935,160.80 and 55,103,636.80

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Solution

The fourth proportional to 79,290,107.20, 118,935,160.80 and 55,103,636.80 is: 82,655,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,290,107.20 : 118,935,160.80 = 55,103,636.80 : x
  2. Step 2: Convert to fraction form
    79,290,107.20/118,935,160.80 = 55,103,636.80/x
  3. Step 3: Cross multiply
    79,290,107.20x = 118,935,160.80 × 55,103,636.80
  4. Step 4: Simplify right side
    79,290,107.20x = 6,553,759,903,472,797
  5. Step 5: Solve for x
    x = 6,553,759,903,472,797/79,290,107.20
  6. Step 6: Final answer
    x = 82,655,455.20

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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.