Home / 20,628,252.32-28,460,780.23-12,365,299.70

Finding the Fourth Proportional to 20,628,252.32, 28,460,780.23 and 12,365,299.70

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Solution

The fourth proportional to 20,628,252.32, 28,460,780.23 and 12,365,299.70 is: 17,060,392.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628,252.32 : 28,460,780.23 = 12,365,299.70 : x
  2. Step 2: Convert to fraction form
    20,628,252.32/28,460,780.23 = 12,365,299.70/x
  3. Step 3: Cross multiply
    20,628,252.32x = 28,460,780.23 × 12,365,299.70
  4. Step 4: Simplify right side
    20,628,252.32x = 351,926,077,280,023.62
  5. Step 5: Solve for x
    x = 351,926,077,280,023.62/20,628,252.32
  6. Step 6: Final answer
    x = 17,060,392.32

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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.