Home / 81,174,456.60-121,778,913.60-26,583,009.72

Finding the Fourth Proportional to 81,174,456.60, 121,778,913.60 and 26,583,009.72

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Solution

The fourth proportional to 81,174,456.60, 121,778,913.60 and 26,583,009.72 is: 39,880,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,174,456.60 : 121,778,913.60 = 26,583,009.72 : x
  2. Step 2: Convert to fraction form
    81,174,456.60/121,778,913.60 = 26,583,009.72/x
  3. Step 3: Cross multiply
    81,174,456.60x = 121,778,913.60 × 26,583,009.72
  4. Step 4: Simplify right side
    81,174,456.60x = 3,237,250,043,919,840
  5. Step 5: Solve for x
    x = 3,237,250,043,919,840/81,174,456.60
  6. Step 6: Final answer
    x = 39,880,156.63

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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.