Home / 354,294,728.40-531,442,092.60-238,653,166.80

Finding the Fourth Proportional to 354,294,728.40, 531,442,092.60 and 238,653,166.80

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Solution

The fourth proportional to 354,294,728.40, 531,442,092.60 and 238,653,166.80 is: 357,979,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,728.40 : 531,442,092.60 = 238,653,166.80 : x
  2. Step 2: Convert to fraction form
    354,294,728.40/531,442,092.60 = 238,653,166.80/x
  3. Step 3: Cross multiply
    354,294,728.40x = 531,442,092.60 × 238,653,166.80
  4. Step 4: Simplify right side
    354,294,728.40x = 126,830,338,369,808,864
  5. Step 5: Solve for x
    x = 126,830,338,369,808,864/354,294,728.40
  6. Step 6: Final answer
    x = 357,979,750.20

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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.