Home / 20,584,280.32-28,409,707.20-11,419,875.52

Finding the Fourth Proportional to 20,584,280.32, 28,409,707.20 and 11,419,875.52

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Solution

The fourth proportional to 20,584,280.32, 28,409,707.20 and 11,419,875.52 is: 15,761,314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584,280.32 : 28,409,707.20 = 11,419,875.52 : x
  2. Step 2: Convert to fraction form
    20,584,280.32/28,409,707.20 = 11,419,875.52/x
  3. Step 3: Cross multiply
    20,584,280.32x = 28,409,707.20 × 11,419,875.52
  4. Step 4: Simplify right side
    20,584,280.32x = 324,435,319,783,647.75
  5. Step 5: Solve for x
    x = 324,435,319,783,647.75/20,584,280.32
  6. Step 6: Final answer
    x = 15,761,314.69

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1.5x scale

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.