Home / 14,371,937.20-21,557,905.80-13,420,154.80

Finding the Fourth Proportional to 14,371,937.20, 21,557,905.80 and 13,420,154.80

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Solution

The fourth proportional to 14,371,937.20, 21,557,905.80 and 13,420,154.80 is: 20,130,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,371,937.20 : 21,557,905.80 = 13,420,154.80 : x
  2. Step 2: Convert to fraction form
    14,371,937.20/21,557,905.80 = 13,420,154.80/x
  3. Step 3: Cross multiply
    14,371,937.20x = 21,557,905.80 × 13,420,154.80
  4. Step 4: Simplify right side
    14,371,937.20x = 289,310,432,999,817.88
  5. Step 5: Solve for x
    x = 289,310,432,999,817.88/14,371,937.20
  6. Step 6: Final answer
    x = 20,130,232.20

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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.