Home / 372,370,858.38-513,871,782.56-215,828,766.82

Finding the Fourth Proportional to 372,370,858.38, 513,871,782.56 and 215,828,766.82

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Solution

The fourth proportional to 372,370,858.38, 513,871,782.56 and 215,828,766.82 is: 297,843,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,370,858.38 : 513,871,782.56 = 215,828,766.82 : x
  2. Step 2: Convert to fraction form
    372,370,858.38/513,871,782.56 = 215,828,766.82/x
  3. Step 3: Cross multiply
    372,370,858.38x = 513,871,782.56 × 215,828,766.82
  4. Step 4: Simplify right side
    372,370,858.38x = 110,908,313,131,156,160
  5. Step 5: Solve for x
    x = 110,908,313,131,156,160/372,370,858.38
  6. Step 6: Final answer
    x = 297,843,697.04

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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.