Home / 402,436,808.60-603,655,212.90-115,222,472.60

Finding the Fourth Proportional to 402,436,808.60, 603,655,212.90 and 115,222,472.60

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Solution

The fourth proportional to 402,436,808.60, 603,655,212.90 and 115,222,472.60 is: 172,833,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,436,808.60 : 603,655,212.90 = 115,222,472.60 : x
  2. Step 2: Convert to fraction form
    402,436,808.60/603,655,212.90 = 115,222,472.60/x
  3. Step 3: Cross multiply
    402,436,808.60x = 603,655,212.90 × 115,222,472.60
  4. Step 4: Simplify right side
    402,436,808.60x = 69,554,646,228,217,408
  5. Step 5: Solve for x
    x = 69,554,646,228,217,408/402,436,808.60
  6. Step 6: Final answer
    x = 172,833,708.90

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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.