Home / 171,926,312.30-257,889,468.45-85,832,870.30

Finding the Fourth Proportional to 171,926,312.30, 257,889,468.45 and 85,832,870.30

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Solution

The fourth proportional to 171,926,312.30, 257,889,468.45 and 85,832,870.30 is: 128,749,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,926,312.30 : 257,889,468.45 = 85,832,870.30 : x
  2. Step 2: Convert to fraction form
    171,926,312.30/257,889,468.45 = 85,832,870.30/x
  3. Step 3: Cross multiply
    171,926,312.30x = 257,889,468.45 × 85,832,870.30
  4. Step 4: Simplify right side
    171,926,312.30x = 22,135,393,297,204,792
  5. Step 5: Solve for x
    x = 22,135,393,297,204,792/171,926,312.30
  6. Step 6: Final answer
    x = 128,749,305.45

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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.