Home / 28,686,381.71-39,588,610.28-16,131,387.74

Finding the Fourth Proportional to 28,686,381.71, 39,588,610.28 and 16,131,387.74

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Solution

The fourth proportional to 28,686,381.71, 39,588,610.28 and 16,131,387.74 is: 22,262,104.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686,381.71 : 39,588,610.28 = 16,131,387.74 : x
  2. Step 2: Convert to fraction form
    28,686,381.71/39,588,610.28 = 16,131,387.74/x
  3. Step 3: Cross multiply
    28,686,381.71x = 39,588,610.28 × 16,131,387.74
  4. Step 4: Simplify right side
    28,686,381.71x = 638,619,222,235,829.88
  5. Step 5: Solve for x
    x = 638,619,222,235,829.88/28,686,381.71
  6. Step 6: Final answer
    x = 22,262,104.33

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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.