Home / 155,435,505.30-233,302,557.15-78,845,015.70

Finding the Fourth Proportional to 155,435,505.30, 233,302,557.15 and 78,845,015.70

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Solution

The fourth proportional to 155,435,505.30, 233,302,557.15 and 78,845,015.70 is: 118,343,255.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,435,505.30 : 233,302,557.15 = 78,845,015.70 : x
  2. Step 2: Convert to fraction form
    155,435,505.30/233,302,557.15 = 78,845,015.70/x
  3. Step 3: Cross multiply
    155,435,505.30x = 233,302,557.15 × 78,845,015.70
  4. Step 4: Simplify right side
    155,435,505.30x = 18,394,743,781,341,900
  5. Step 5: Solve for x
    x = 18,394,743,781,341,900/155,435,505.30
  6. Step 6: Final answer
    x = 118,343,255.91

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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.