Home / 20,087,722.11-27,719,879.36-10,920,284.67

Finding the Fourth Proportional to 20,087,722.11, 27,719,879.36 and 10,920,284.67

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Solution

The fourth proportional to 20,087,722.11, 27,719,879.36 and 10,920,284.67 is: 15,069,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087,722.11 : 27,719,879.36 = 10,920,284.67 : x
  2. Step 2: Convert to fraction form
    20,087,722.11/27,719,879.36 = 10,920,284.67/x
  3. Step 3: Cross multiply
    20,087,722.11x = 27,719,879.36 × 10,920,284.67
  4. Step 4: Simplify right side
    20,087,722.11x = 302,708,973,574,656
  5. Step 5: Solve for x
    x = 302,708,973,574,656/20,087,722.11
  6. Step 6: Final answer
    x = 15,069,352.91

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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.