Home / 128,385,341.01-177,156,823.61-71,873,181.44

Finding the Fourth Proportional to 128,385,341.01, 177,156,823.61 and 71,873,181.44

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Solution

The fourth proportional to 128,385,341.01, 177,156,823.61 and 71,873,181.44 is: 99,176,622.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,385,341.01 : 177,156,823.61 = 71,873,181.44 : x
  2. Step 2: Convert to fraction form
    128,385,341.01/177,156,823.61 = 71,873,181.44/x
  3. Step 3: Cross multiply
    128,385,341.01x = 177,156,823.61 × 71,873,181.44
  4. Step 4: Simplify right side
    128,385,341.01x = 12,732,824,527,610,530
  5. Step 5: Solve for x
    x = 12,732,824,527,610,530/128,385,341.01
  6. Step 6: Final answer
    x = 99,176,622.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.