Home / 171,926,312.80-257,889,469.20-85,832,870.80

Finding the Fourth Proportional to 171,926,312.80, 257,889,469.20 and 85,832,870.80

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Solution

The fourth proportional to 171,926,312.80, 257,889,469.20 and 85,832,870.80 is: 128,749,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,926,312.80 : 257,889,469.20 = 85,832,870.80 : x
  2. Step 2: Convert to fraction form
    171,926,312.80/257,889,469.20 = 85,832,870.80/x
  3. Step 3: Cross multiply
    171,926,312.80x = 257,889,469.20 × 85,832,870.80
  4. Step 4: Simplify right side
    171,926,312.80x = 22,135,393,490,524,176
  5. Step 5: Solve for x
    x = 22,135,393,490,524,176/171,926,312.80
  6. Step 6: Final answer
    x = 128,749,306.20

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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.