Home / 372,370,887.72-513,871,822.86-215,828,796.12

Finding the Fourth Proportional to 372,370,887.72, 513,871,822.86 and 215,828,796.12

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Solution

The fourth proportional to 372,370,887.72, 513,871,822.86 and 215,828,796.12 is: 297,843,737.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,370,887.72 : 513,871,822.86 = 215,828,796.12 : x
  2. Step 2: Convert to fraction form
    372,370,887.72/513,871,822.86 = 215,828,796.12/x
  3. Step 3: Cross multiply
    372,370,887.72x = 513,871,822.86 × 215,828,796.12
  4. Step 4: Simplify right side
    372,370,887.72x = 110,908,336,887,863,696
  5. Step 5: Solve for x
    x = 110,908,336,887,863,696/372,370,887.72
  6. Step 6: Final answer
    x = 297,843,737.37

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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.