Home / 18,695,400.30-28,043,100.45-11,686,502.70

Finding the Fourth Proportional to 18,695,400.30, 28,043,100.45 and 11,686,502.70

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Solution

The fourth proportional to 18,695,400.30, 28,043,100.45 and 11,686,502.70 is: 17,529,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695,400.30 : 28,043,100.45 = 11,686,502.70 : x
  2. Step 2: Convert to fraction form
    18,695,400.30/28,043,100.45 = 11,686,502.70/x
  3. Step 3: Cross multiply
    18,695,400.30x = 28,043,100.45 × 11,686,502.70
  4. Step 4: Simplify right side
    18,695,400.30x = 327,725,769,125,296.19
  5. Step 5: Solve for x
    x = 327,725,769,125,296.19/18,695,400.30
  6. Step 6: Final answer
    x = 17,529,754.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.