Home / 20,718,557.24-28,593,699.18-12,019,390.52

Finding the Fourth Proportional to 20,718,557.24, 28,593,699.18 and 12,019,390.52

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Solution

The fourth proportional to 20,718,557.24, 28,593,699.18 and 12,019,390.52 is: 16,587,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,557.24 : 28,593,699.18 = 12,019,390.52 : x
  2. Step 2: Convert to fraction form
    20,718,557.24/28,593,699.18 = 12,019,390.52/x
  3. Step 3: Cross multiply
    20,718,557.24x = 28,593,699.18 × 12,019,390.52
  4. Step 4: Simplify right side
    20,718,557.24x = 343,678,836,855,823.75
  5. Step 5: Solve for x
    x = 343,678,836,855,823.75/20,718,557.24
  6. Step 6: Final answer
    x = 16,587,971.49

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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.