Home / 207,780,860.40-311,465,712.60-98,413,801.80

Finding the Fourth Proportional to 207,780,860.40, 311,465,712.60 and 98,413,801.80

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Solution

The fourth proportional to 207,780,860.40, 311,465,712.60 and 98,413,801.80 is: 147,523,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,780,860.40 : 311,465,712.60 = 98,413,801.80 : x
  2. Step 2: Convert to fraction form
    207,780,860.40/311,465,712.60 = 98,413,801.80/x
  3. Step 3: Cross multiply
    207,780,860.40x = 311,465,712.60 × 98,413,801.80
  4. Step 4: Simplify right side
    207,780,860.40x = 30,652,524,907,312,164
  5. Step 5: Solve for x
    x = 30,652,524,907,312,164/207,780,860.40
  6. Step 6: Final answer
    x = 147,523,332.27

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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.