Home / 8,688,380.96-11,989,173.13-5,155,568.82

Finding the Fourth Proportional to 8,688,380.96, 11,989,173.13 and 5,155,568.82

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Solution

The fourth proportional to 8,688,380.96, 11,989,173.13 and 5,155,568.82 is: 7,114,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,380.96 : 11,989,173.13 = 5,155,568.82 : x
  2. Step 2: Convert to fraction form
    8,688,380.96/11,989,173.13 = 5,155,568.82/x
  3. Step 3: Cross multiply
    8,688,380.96x = 11,989,173.13 × 5,155,568.82
  4. Step 4: Simplify right side
    8,688,380.96x = 61,811,007,107,948.58
  5. Step 5: Solve for x
    x = 61,811,007,107,948.58/8,688,380.96
  6. Step 6: Final answer
    x = 7,114,214.65

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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.