Home / 486,178,867.80-729,384,318-158,654,989.80

Finding the Fourth Proportional to 486,178,867.80, 729,384,318 and 158,654,989.80

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Solution

The fourth proportional to 486,178,867.80, 729,384,318 and 158,654,989.80 is: 238,020,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,178,867.80 : 729,384,318 = 158,654,989.80 : x
  2. Step 2: Convert to fraction form
    486,178,867.80/729,384,318 = 158,654,989.80/x
  3. Step 3: Cross multiply
    486,178,867.80x = 729,384,318 × 158,654,989.80
  4. Step 4: Simplify right side
    486,178,867.80x = 115,720,461,532,569,968
  5. Step 5: Solve for x
    x = 115,720,461,532,569,968/486,178,867.80
  6. Step 6: Final answer
    x = 238,020,344.36

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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.