Home / 193,536,981.20-290,438,182.20-85,908,846.80

Finding the Fourth Proportional to 193,536,981.20, 290,438,182.20 and 85,908,846.80

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Solution

The fourth proportional to 193,536,981.20, 290,438,182.20 and 85,908,846.80 is: 128,922,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,536,981.20 : 290,438,182.20 = 85,908,846.80 : x
  2. Step 2: Convert to fraction form
    193,536,981.20/290,438,182.20 = 85,908,846.80/x
  3. Step 3: Cross multiply
    193,536,981.20x = 290,438,182.20 × 85,908,846.80
  4. Step 4: Simplify right side
    193,536,981.20x = 24,951,209,299,490,284
  5. Step 5: Solve for x
    x = 24,951,209,299,490,284/193,536,981.20
  6. Step 6: Final answer
    x = 128,922,178.82

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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.