Home / 78,018,614.70-107,738,060.49-58,405,452.90

Finding the Fourth Proportional to 78,018,614.70, 107,738,060.49 and 58,405,452.90

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Solution

The fourth proportional to 78,018,614.70, 107,738,060.49 and 58,405,452.90 is: 80,653,703.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,018,614.70 : 107,738,060.49 = 58,405,452.90 : x
  2. Step 2: Convert to fraction form
    78,018,614.70/107,738,060.49 = 58,405,452.90/x
  3. Step 3: Cross multiply
    78,018,614.70x = 107,738,060.49 × 58,405,452.90
  4. Step 4: Simplify right side
    78,018,614.70x = 6,292,490,217,486,045
  5. Step 5: Solve for x
    x = 6,292,490,217,486,045/78,018,614.70
  6. Step 6: Final answer
    x = 80,653,703.50

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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.