Home / 319,681,640.40-479,312,508.60-125,476,040.40

Finding the Fourth Proportional to 319,681,640.40, 479,312,508.60 and 125,476,040.40

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Solution

The fourth proportional to 319,681,640.40, 479,312,508.60 and 125,476,040.40 is: 188,131,653.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,681,640.40 : 479,312,508.60 = 125,476,040.40 : x
  2. Step 2: Convert to fraction form
    319,681,640.40/479,312,508.60 = 125,476,040.40/x
  3. Step 3: Cross multiply
    319,681,640.40x = 479,312,508.60 × 125,476,040.40
  4. Step 4: Simplify right side
    319,681,640.40x = 60,142,235,693,318,952
  5. Step 5: Solve for x
    x = 60,142,235,693,318,952/319,681,640.40
  6. Step 6: Final answer
    x = 188,131,653.79

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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.