Home / 14,255,821.20-21,336,492.60-13,122,080.40

Finding the Fourth Proportional to 14,255,821.20, 21,336,492.60 and 13,122,080.40

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Solution

The fourth proportional to 14,255,821.20, 21,336,492.60 and 13,122,080.40 is: 19,639,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255,821.20 : 21,336,492.60 = 13,122,080.40 : x
  2. Step 2: Convert to fraction form
    14,255,821.20/21,336,492.60 = 13,122,080.40/x
  3. Step 3: Cross multiply
    14,255,821.20x = 21,336,492.60 × 13,122,080.40
  4. Step 4: Simplify right side
    14,255,821.20x = 279,979,171,351,205.06
  5. Step 5: Solve for x
    x = 279,979,171,351,205.06/14,255,821.20
  6. Step 6: Final answer
    x = 19,639,638.25

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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.