Home / 13,492,980.41-18,620,753.04-7,381,408.91

Finding the Fourth Proportional to 13,492,980.41, 18,620,753.04 and 7,381,408.91

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Solution

The fourth proportional to 13,492,980.41, 18,620,753.04 and 7,381,408.91 is: 10,186,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492,980.41 : 18,620,753.04 = 7,381,408.91 : x
  2. Step 2: Convert to fraction form
    13,492,980.41/18,620,753.04 = 7,381,408.91/x
  3. Step 3: Cross multiply
    13,492,980.41x = 18,620,753.04 × 7,381,408.91
  4. Step 4: Simplify right side
    13,492,980.41x = 137,447,392,307,261.81
  5. Step 5: Solve for x
    x = 137,447,392,307,261.81/13,492,980.41
  6. Step 6: Final answer
    x = 10,186,585.04

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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.