Home / 28,546,842-39,394,685.25-15,494,105.69

Finding the Fourth Proportional to 28,546,842, 39,394,685.25 and 15,494,105.69

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Solution

The fourth proportional to 28,546,842, 39,394,685.25 and 15,494,105.69 is: 21,381,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546,842 : 39,394,685.25 = 15,494,105.69 : x
  2. Step 2: Convert to fraction form
    28,546,842/39,394,685.25 = 15,494,105.69/x
  3. Step 3: Cross multiply
    28,546,842x = 39,394,685.25 × 15,494,105.69
  4. Step 4: Simplify right side
    28,546,842x = 610,385,416,887,784
  5. Step 5: Solve for x
    x = 610,385,416,887,784/28,546,842
  6. Step 6: Final answer
    x = 21,381,889.35

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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.