Home / 653,315,512.32-980,116,761.60-193,217,812.20

Finding the Fourth Proportional to 653,315,512.32, 980,116,761.60 and 193,217,812.20

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Solution

The fourth proportional to 653,315,512.32, 980,116,761.60 and 193,217,812.20 is: 289,869,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,315,512.32 : 980,116,761.60 = 193,217,812.20 : x
  2. Step 2: Convert to fraction form
    653,315,512.32/980,116,761.60 = 193,217,812.20/x
  3. Step 3: Cross multiply
    653,315,512.32x = 980,116,761.60 × 193,217,812.20
  4. Step 4: Simplify right side
    653,315,512.32x = 189,376,016,376,900,960
  5. Step 5: Solve for x
    x = 189,376,016,376,900,960/653,315,512.32
  6. Step 6: Final answer
    x = 289,869,156.34

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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.