Home / 140,240,775.67-193,533,243.20-78,363,722.23

Finding the Fourth Proportional to 140,240,775.67, 193,533,243.20 and 78,363,722.23

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Solution

The fourth proportional to 140,240,775.67, 193,533,243.20 and 78,363,722.23 is: 108,142,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,240,775.67 : 193,533,243.20 = 78,363,722.23 : x
  2. Step 2: Convert to fraction form
    140,240,775.67/193,533,243.20 = 78,363,722.23/x
  3. Step 3: Cross multiply
    140,240,775.67x = 193,533,243.20 × 78,363,722.23
  4. Step 4: Simplify right side
    140,240,775.67x = 15,165,985,311,814,050
  5. Step 5: Solve for x
    x = 15,165,985,311,814,050/140,240,775.67
  6. Step 6: Final answer
    x = 108,142,480.24

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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.