Home / 21,832,134.60-30,128,555.90-12,042,991.38

Finding the Fourth Proportional to 21,832,134.60, 30,128,555.90 and 12,042,991.38

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Solution

The fourth proportional to 21,832,134.60, 30,128,555.90 and 12,042,991.38 is: 16,619,444.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,832,134.60 : 30,128,555.90 = 12,042,991.38 : x
  2. Step 2: Convert to fraction form
    21,832,134.60/30,128,555.90 = 12,042,991.38/x
  3. Step 3: Cross multiply
    21,832,134.60x = 30,128,555.90 × 12,042,991.38
  4. Step 4: Simplify right side
    21,832,134.60x = 362,837,939,025,655.62
  5. Step 5: Solve for x
    x = 362,837,939,025,655.62/21,832,134.60
  6. Step 6: Final answer
    x = 16,619,444.03

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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.