Home / 108,936,013.20-163,404,019.80-83,426,845.20

Finding the Fourth Proportional to 108,936,013.20, 163,404,019.80 and 83,426,845.20

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Solution

The fourth proportional to 108,936,013.20, 163,404,019.80 and 83,426,845.20 is: 125,140,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,936,013.20 : 163,404,019.80 = 83,426,845.20 : x
  2. Step 2: Convert to fraction form
    108,936,013.20/163,404,019.80 = 83,426,845.20/x
  3. Step 3: Cross multiply
    108,936,013.20x = 163,404,019.80 × 83,426,845.20
  4. Step 4: Simplify right side
    108,936,013.20x = 13,632,281,864,912,336
  5. Step 5: Solve for x
    x = 13,632,281,864,912,336/108,936,013.20
  6. Step 6: Final answer
    x = 125,140,267.80

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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.