Home / 140,240,776.48-193,533,244.32-78,363,723.04

Finding the Fourth Proportional to 140,240,776.48, 193,533,244.32 and 78,363,723.04

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Solution

The fourth proportional to 140,240,776.48, 193,533,244.32 and 78,363,723.04 is: 108,142,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,240,776.48 : 193,533,244.32 = 78,363,723.04 : x
  2. Step 2: Convert to fraction form
    140,240,776.48/193,533,244.32 = 78,363,723.04/x
  3. Step 3: Cross multiply
    140,240,776.48x = 193,533,244.32 × 78,363,723.04
  4. Step 4: Simplify right side
    140,240,776.48x = 15,165,985,556,925,134
  5. Step 5: Solve for x
    x = 15,165,985,556,925,134/140,240,776.48
  6. Step 6: Final answer
    x = 108,142,481.36

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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.