Home / 120,282,479.55-165,990,412.76-65,278,399.23

Finding the Fourth Proportional to 120,282,479.55, 165,990,412.76 and 65,278,399.23

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Solution

The fourth proportional to 120,282,479.55, 165,990,412.76 and 65,278,399.23 is: 90,084,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,282,479.55 : 165,990,412.76 = 65,278,399.23 : x
  2. Step 2: Convert to fraction form
    120,282,479.55/165,990,412.76 = 65,278,399.23/x
  3. Step 3: Cross multiply
    120,282,479.55x = 165,990,412.76 × 65,278,399.23
  4. Step 4: Simplify right side
    120,282,479.55x = 10,835,588,432,173,374
  5. Step 5: Solve for x
    x = 10,835,588,432,173,374/120,282,479.55
  6. Step 6: Final answer
    x = 90,084,511.67

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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.