Home / 155,333,628.80-233,149,742.40-78,743,139.20

Finding the Fourth Proportional to 155,333,628.80, 233,149,742.40 and 78,743,139.20

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Solution

The fourth proportional to 155,333,628.80, 233,149,742.40 and 78,743,139.20 is: 118,190,392.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,333,628.80 : 233,149,742.40 = 78,743,139.20 : x
  2. Step 2: Convert to fraction form
    155,333,628.80/233,149,742.40 = 78,743,139.20/x
  3. Step 3: Cross multiply
    155,333,628.80x = 233,149,742.40 × 78,743,139.20
  4. Step 4: Simplify right side
    155,333,628.80x = 18,358,942,620,247,344
  5. Step 5: Solve for x
    x = 18,358,942,620,247,344/155,333,628.80
  6. Step 6: Final answer
    x = 118,190,392.91

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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.