Home / 79,835,820.80-119,753,731.20-76,700,537.60

Finding the Fourth Proportional to 79,835,820.80, 119,753,731.20 and 76,700,537.60

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Solution

The fourth proportional to 79,835,820.80, 119,753,731.20 and 76,700,537.60 is: 115,050,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,835,820.80 : 119,753,731.20 = 76,700,537.60 : x
  2. Step 2: Convert to fraction form
    79,835,820.80/119,753,731.20 = 76,700,537.60/x
  3. Step 3: Cross multiply
    79,835,820.80x = 119,753,731.20 × 76,700,537.60
  4. Step 4: Simplify right side
    79,835,820.80x = 9,185,175,562,645,892
  5. Step 5: Solve for x
    x = 9,185,175,562,645,892/79,835,820.80
  6. Step 6: Final answer
    x = 115,050,806.40

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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.