Home / 7,149,131.19-9,865,871.15-3,885,943.91

Finding the Fourth Proportional to 7,149,131.19, 9,865,871.15 and 3,885,943.91

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Solution

The fourth proportional to 7,149,131.19, 9,865,871.15 and 3,885,943.91 is: 5,362,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,131.19 : 9,865,871.15 = 3,885,943.91 : x
  2. Step 2: Convert to fraction form
    7,149,131.19/9,865,871.15 = 3,885,943.91/x
  3. Step 3: Cross multiply
    7,149,131.19x = 9,865,871.15 × 3,885,943.91
  4. Step 4: Simplify right side
    7,149,131.19x = 38,338,221,843,428.12
  5. Step 5: Solve for x
    x = 38,338,221,843,428.12/7,149,131.19
  6. Step 6: Final answer
    x = 5,362,640.69

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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.