Home / 20,640,895.14-28,482,739.92-12,152,685.63

Finding the Fourth Proportional to 20,640,895.14, 28,482,739.92 and 12,152,685.63

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Solution

The fourth proportional to 20,640,895.14, 28,482,739.92 and 12,152,685.63 is: 16,769,707.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640,895.14 : 28,482,739.92 = 12,152,685.63 : x
  2. Step 2: Convert to fraction form
    20,640,895.14/28,482,739.92 = 12,152,685.63/x
  3. Step 3: Cross multiply
    20,640,895.14x = 28,482,739.92 × 12,152,685.63
  4. Step 4: Simplify right side
    20,640,895.14x = 346,141,784,128,811.38
  5. Step 5: Solve for x
    x = 346,141,784,128,811.38/20,640,895.14
  6. Step 6: Final answer
    x = 16,769,707.99

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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.