Home / 193,428,236.80-290,142,355.20-155,164,484.80

Finding the Fourth Proportional to 193,428,236.80, 290,142,355.20 and 155,164,484.80

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Solution

The fourth proportional to 193,428,236.80, 290,142,355.20 and 155,164,484.80 is: 232,746,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,428,236.80 : 290,142,355.20 = 155,164,484.80 : x
  2. Step 2: Convert to fraction form
    193,428,236.80/290,142,355.20 = 155,164,484.80/x
  3. Step 3: Cross multiply
    193,428,236.80x = 290,142,355.20 × 155,164,484.80
  4. Step 4: Simplify right side
    193,428,236.80x = 45,019,789,063,266,600
  5. Step 5: Solve for x
    x = 45,019,789,063,266,600/193,428,236.80
  6. Step 6: Final answer
    x = 232,746,727.20

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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.