Home / 136,518,229.80-204,352,191.90-78,839,166.60

Finding the Fourth Proportional to 136,518,229.80, 204,352,191.90 and 78,839,166.60

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Solution

The fourth proportional to 136,518,229.80, 204,352,191.90 and 78,839,166.60 is: 118,013,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,518,229.80 : 204,352,191.90 = 78,839,166.60 : x
  2. Step 2: Convert to fraction form
    136,518,229.80/204,352,191.90 = 78,839,166.60/x
  3. Step 3: Cross multiply
    136,518,229.80x = 204,352,191.90 × 78,839,166.60
  4. Step 4: Simplify right side
    136,518,229.80x = 16,110,956,502,279,270
  5. Step 5: Solve for x
    x = 16,110,956,502,279,270/136,518,229.80
  6. Step 6: Final answer
    x = 118,013,224.50

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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.