Home / 18,898,981.61-28,352,606.79-6,120,778.01

Finding the Fourth Proportional to 18,898,981.61, 28,352,606.79 and 6,120,778.01

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Solution

The fourth proportional to 18,898,981.61, 28,352,606.79 and 6,120,778.01 is: 9,182,506.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898,981.61 : 28,352,606.79 = 6,120,778.01 : x
  2. Step 2: Convert to fraction form
    18,898,981.61/28,352,606.79 = 6,120,778.01/x
  3. Step 3: Cross multiply
    18,898,981.61x = 28,352,606.79 × 6,120,778.01
  4. Step 4: Simplify right side
    18,898,981.61x = 173,540,012,166,408.69
  5. Step 5: Solve for x
    x = 173,540,012,166,408.69/18,898,981.61
  6. Step 6: Final answer
    x = 9,182,506.01

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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.