Home / 203,341,848.12-280,746,885.20-156,214,988.91

Finding the Fourth Proportional to 203,341,848.12, 280,746,885.20 and 156,214,988.91

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Solution

The fourth proportional to 203,341,848.12, 280,746,885.20 and 156,214,988.91 is: 215,680,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,341,848.12 : 280,746,885.20 = 156,214,988.91 : x
  2. Step 2: Convert to fraction form
    203,341,848.12/280,746,885.20 = 156,214,988.91/x
  3. Step 3: Cross multiply
    203,341,848.12x = 280,746,885.20 × 156,214,988.91
  4. Step 4: Simplify right side
    203,341,848.12x = 43,856,871,557,253,968
  5. Step 5: Solve for x
    x = 43,856,871,557,253,968/203,341,848.12
  6. Step 6: Final answer
    x = 215,680,500.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.