Home / 285,949,869.06-428,728,989.06-145,618,686.03

Finding the Fourth Proportional to 285,949,869.06, 428,728,989.06 and 145,618,686.03

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Solution

The fourth proportional to 285,949,869.06, 428,728,989.06 and 145,618,686.03 is: 218,328,311.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,949,869.06 : 428,728,989.06 = 145,618,686.03 : x
  2. Step 2: Convert to fraction form
    285,949,869.06/428,728,989.06 = 145,618,686.03/x
  3. Step 3: Cross multiply
    285,949,869.06x = 428,728,989.06 × 145,618,686.03
  4. Step 4: Simplify right side
    285,949,869.06x = 62,430,952,049,887,448
  5. Step 5: Solve for x
    x = 62,430,952,049,887,448/285,949,869.06
  6. Step 6: Final answer
    x = 218,328,311.38

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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.