Home / 215,047,077.80-322,570,616.70-78,687,141.80

Finding the Fourth Proportional to 215,047,077.80, 322,570,616.70 and 78,687,141.80

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Solution

The fourth proportional to 215,047,077.80, 322,570,616.70 and 78,687,141.80 is: 118,030,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,047,077.80 : 322,570,616.70 = 78,687,141.80 : x
  2. Step 2: Convert to fraction form
    215,047,077.80/322,570,616.70 = 78,687,141.80/x
  3. Step 3: Cross multiply
    215,047,077.80x = 322,570,616.70 × 78,687,141.80
  4. Step 4: Simplify right side
    215,047,077.80x = 25,382,159,856,786,348
  5. Step 5: Solve for x
    x = 25,382,159,856,786,348/215,047,077.80
  6. Step 6: Final answer
    x = 118,030,712.70

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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.