Home / 13,492,982.66-18,620,756.15-7,381,411.16

Finding the Fourth Proportional to 13,492,982.66, 18,620,756.15 and 7,381,411.16

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Solution

The fourth proportional to 13,492,982.66, 18,620,756.15 and 7,381,411.16 is: 10,186,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492,982.66 : 18,620,756.15 = 7,381,411.16 : x
  2. Step 2: Convert to fraction form
    13,492,982.66/18,620,756.15 = 7,381,411.16/x
  3. Step 3: Cross multiply
    13,492,982.66x = 18,620,756.15 × 7,381,411.16
  4. Step 4: Simplify right side
    13,492,982.66x = 137,447,457,123,237.80
  5. Step 5: Solve for x
    x = 137,447,457,123,237.80/13,492,982.66
  6. Step 6: Final answer
    x = 10,186,588.14

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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.