Home / 13,178,521.60-19,729,291.20-9,399,385.60

Finding the Fourth Proportional to 13,178,521.60, 19,729,291.20 and 9,399,385.60

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Solution

The fourth proportional to 13,178,521.60, 19,729,291.20 and 9,399,385.60 is: 14,071,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,521.60 : 19,729,291.20 = 9,399,385.60 : x
  2. Step 2: Convert to fraction form
    13,178,521.60/19,729,291.20 = 9,399,385.60/x
  3. Step 3: Cross multiply
    13,178,521.60x = 19,729,291.20 × 9,399,385.60
  4. Step 4: Simplify right side
    13,178,521.60x = 185,443,215,603,486.72
  5. Step 5: Solve for x
    x = 185,443,215,603,486.72/13,178,521.60
  6. Step 6: Final answer
    x = 14,071,625.12

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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.