Home / 165,005,676.60-247,345,218.90-72,939,391.80

Finding the Fourth Proportional to 165,005,676.60, 247,345,218.90 and 72,939,391.80

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Solution

The fourth proportional to 165,005,676.60, 247,345,218.90 and 72,939,391.80 is: 109,336,904.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,005,676.60 : 247,345,218.90 = 72,939,391.80 : x
  2. Step 2: Convert to fraction form
    165,005,676.60/247,345,218.90 = 72,939,391.80/x
  3. Step 3: Cross multiply
    165,005,676.60x = 247,345,218.90 × 72,939,391.80
  4. Step 4: Simplify right side
    165,005,676.60x = 18,041,209,831,203,864
  5. Step 5: Solve for x
    x = 18,041,209,831,203,864/165,005,676.60
  6. Step 6: Final answer
    x = 109,336,904.06

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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.