Home / 7,218,131.93-10,828,895.55-2,100,672.21

Finding the Fourth Proportional to 7,218,131.93, 10,828,895.55 and 2,100,672.21

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Solution

The fourth proportional to 7,218,131.93, 10,828,895.55 and 2,100,672.21 is: 3,151,502.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,131.93 : 10,828,895.55 = 2,100,672.21 : x
  2. Step 2: Convert to fraction form
    7,218,131.93/10,828,895.55 = 2,100,672.21/x
  3. Step 3: Cross multiply
    7,218,131.93x = 10,828,895.55 × 2,100,672.21
  4. Step 4: Simplify right side
    7,218,131.93x = 22,747,959,946,877.67
  5. Step 5: Solve for x
    x = 22,747,959,946,877.67/7,218,131.93
  6. Step 6: Final answer
    x = 3,151,502.38

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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.