Home / 21,888,875.67-30,206,655.05-11,965,801.52

Finding the Fourth Proportional to 21,888,875.67, 30,206,655.05 and 11,965,801.52

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Solution

The fourth proportional to 21,888,875.67, 30,206,655.05 and 11,965,801.52 is: 16,512,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888,875.67 : 30,206,655.05 = 11,965,801.52 : x
  2. Step 2: Convert to fraction form
    21,888,875.67/30,206,655.05 = 11,965,801.52/x
  3. Step 3: Cross multiply
    21,888,875.67x = 30,206,655.05 × 11,965,801.52
  4. Step 4: Simplify right side
    21,888,875.67x = 361,446,838,700,543.44
  5. Step 5: Solve for x
    x = 361,446,838,700,543.44/21,888,875.67
  6. Step 6: Final answer
    x = 16,512,809.71

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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.