Home / 20,087,721.36-27,719,878.32-10,920,283.92

Finding the Fourth Proportional to 20,087,721.36, 27,719,878.32 and 10,920,283.92

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Solution

The fourth proportional to 20,087,721.36, 27,719,878.32 and 10,920,283.92 is: 15,069,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087,721.36 : 27,719,878.32 = 10,920,283.92 : x
  2. Step 2: Convert to fraction form
    20,087,721.36/27,719,878.32 = 10,920,283.92/x
  3. Step 3: Cross multiply
    20,087,721.36x = 27,719,878.32 × 10,920,283.92
  4. Step 4: Simplify right side
    20,087,721.36x = 302,708,941,482,252.62
  5. Step 5: Solve for x
    x = 302,708,941,482,252.62/20,087,721.36
  6. Step 6: Final answer
    x = 15,069,351.87

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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.