Home / 314,928,007.20-472,392,010.80-84,920,342.40

Finding the Fourth Proportional to 314,928,007.20, 472,392,010.80 and 84,920,342.40

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Solution

The fourth proportional to 314,928,007.20, 472,392,010.80 and 84,920,342.40 is: 127,380,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,007.20 : 472,392,010.80 = 84,920,342.40 : x
  2. Step 2: Convert to fraction form
    314,928,007.20/472,392,010.80 = 84,920,342.40/x
  3. Step 3: Cross multiply
    314,928,007.20x = 472,392,010.80 × 84,920,342.40
  4. Step 4: Simplify right side
    314,928,007.20x = 40,115,691,304,160,504
  5. Step 5: Solve for x
    x = 40,115,691,304,160,504/314,928,007.20
  6. Step 6: Final answer
    x = 127,380,513.60

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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.