Home / 140,240,777.23-193,533,245.36-78,363,723.79

Finding the Fourth Proportional to 140,240,777.23, 193,533,245.36 and 78,363,723.79

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Solution

The fourth proportional to 140,240,777.23, 193,533,245.36 and 78,363,723.79 is: 108,142,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,240,777.23 : 193,533,245.36 = 78,363,723.79 : x
  2. Step 2: Convert to fraction form
    140,240,777.23/193,533,245.36 = 78,363,723.79/x
  3. Step 3: Cross multiply
    140,240,777.23x = 193,533,245.36 × 78,363,723.79
  4. Step 4: Simplify right side
    140,240,777.23x = 15,165,985,783,573,342
  5. Step 5: Solve for x
    x = 15,165,985,783,573,342/140,240,777.23
  6. Step 6: Final answer
    x = 108,142,482.40

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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.