Home / 435,557,681.20-653,336,521.80-217,879,447.60

Finding the Fourth Proportional to 435,557,681.20, 653,336,521.80 and 217,879,447.60

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Solution

The fourth proportional to 435,557,681.20, 653,336,521.80 and 217,879,447.60 is: 326,819,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,557,681.20 : 653,336,521.80 = 217,879,447.60 : x
  2. Step 2: Convert to fraction form
    435,557,681.20/653,336,521.80 = 217,879,447.60/x
  3. Step 3: Cross multiply
    435,557,681.20x = 653,336,521.80 × 217,879,447.60
  4. Step 4: Simplify right side
    435,557,681.20x = 142,348,600,466,689,344
  5. Step 5: Solve for x
    x = 142,348,600,466,689,344/435,557,681.20
  6. Step 6: Final answer
    x = 326,819,171.40

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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.