Home / 435,557,999.70-653,336,999.55-217,879,766.10

Finding the Fourth Proportional to 435,557,999.70, 653,336,999.55 and 217,879,766.10

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Solution

The fourth proportional to 435,557,999.70, 653,336,999.55 and 217,879,766.10 is: 326,819,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,557,999.70 : 653,336,999.55 = 217,879,766.10 : x
  2. Step 2: Convert to fraction form
    435,557,999.70/653,336,999.55 = 217,879,766.10/x
  3. Step 3: Cross multiply
    435,557,999.70x = 653,336,999.55 × 217,879,766.10
  4. Step 4: Simplify right side
    435,557,999.70x = 142,348,912,646,429,792
  5. Step 5: Solve for x
    x = 142,348,912,646,429,792/435,557,999.70
  6. Step 6: Final answer
    x = 326,819,649.15

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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.