Home / 319,304,137.20-478,956,205.80-137,551,315.20

Finding the Fourth Proportional to 319,304,137.20, 478,956,205.80 and 137,551,315.20

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Solution

The fourth proportional to 319,304,137.20, 478,956,205.80 and 137,551,315.20 is: 206,326,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,304,137.20 : 478,956,205.80 = 137,551,315.20 : x
  2. Step 2: Convert to fraction form
    319,304,137.20/478,956,205.80 = 137,551,315.20/x
  3. Step 3: Cross multiply
    319,304,137.20x = 478,956,205.80 × 137,551,315.20
  4. Step 4: Simplify right side
    319,304,137.20x = 65,881,056,030,991,864
  5. Step 5: Solve for x
    x = 65,881,056,030,991,864/319,304,137.20
  6. Step 6: Final answer
    x = 206,326,972.80

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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.