Home / 243,277,865.20-364,920,530.28-81,721,200.88

Finding the Fourth Proportional to 243,277,865.20, 364,920,530.28 and 81,721,200.88

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Solution

The fourth proportional to 243,277,865.20, 364,920,530.28 and 81,721,200.88 is: 122,583,055.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,277,865.20 : 364,920,530.28 = 81,721,200.88 : x
  2. Step 2: Convert to fraction form
    243,277,865.20/364,920,530.28 = 81,721,200.88/x
  3. Step 3: Cross multiply
    243,277,865.20x = 364,920,530.28 × 81,721,200.88
  4. Step 4: Simplify right side
    243,277,865.20x = 29,821,743,960,248,000
  5. Step 5: Solve for x
    x = 29,821,743,960,248,000/243,277,865.20
  6. Step 6: Final answer
    x = 122,583,055.12

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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.