Home / 81,615,098.40-122,139,212.40-56,105,930.40

Finding the Fourth Proportional to 81,615,098.40, 122,139,212.40 and 56,105,930.40

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Solution

The fourth proportional to 81,615,098.40, 122,139,212.40 and 56,105,930.40 is: 83,964,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,615,098.40 : 122,139,212.40 = 56,105,930.40 : x
  2. Step 2: Convert to fraction form
    81,615,098.40/122,139,212.40 = 56,105,930.40/x
  3. Step 3: Cross multiply
    81,615,098.40x = 122,139,212.40 × 56,105,930.40
  4. Step 4: Simplify right side
    81,615,098.40x = 6,852,734,150,025,217
  5. Step 5: Solve for x
    x = 6,852,734,150,025,217/81,615,098.40
  6. Step 6: Final answer
    x = 83,964,049.35

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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.