Home / 158,271,209.31-218,426,385.70-99,584,179.68

Finding the Fourth Proportional to 158,271,209.31, 218,426,385.70 and 99,584,179.68

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Solution

The fourth proportional to 158,271,209.31, 218,426,385.70 and 99,584,179.68 is: 137,433,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,271,209.31 : 218,426,385.70 = 99,584,179.68 : x
  2. Step 2: Convert to fraction form
    158,271,209.31/218,426,385.70 = 99,584,179.68/x
  3. Step 3: Cross multiply
    158,271,209.31x = 218,426,385.70 × 99,584,179.68
  4. Step 4: Simplify right side
    158,271,209.31x = 21,751,812,440,401,784
  5. Step 5: Solve for x
    x = 21,751,812,440,401,784/158,271,209.31
  6. Step 6: Final answer
    x = 137,433,791.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.