Home / 9,286,419.15-12,816,779.81-5,418,928.35

Finding the Fourth Proportional to 9,286,419.15, 12,816,779.81 and 5,418,928.35

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Solution

The fourth proportional to 9,286,419.15, 12,816,779.81 and 5,418,928.35 is: 7,479,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,286,419.15 : 12,816,779.81 = 5,418,928.35 : x
  2. Step 2: Convert to fraction form
    9,286,419.15/12,816,779.81 = 5,418,928.35/x
  3. Step 3: Cross multiply
    9,286,419.15x = 12,816,779.81 × 5,418,928.35
  4. Step 4: Simplify right side
    9,286,419.15x = 69,453,211,441,021.97
  5. Step 5: Solve for x
    x = 69,453,211,441,021.97/9,286,419.15
  6. Step 6: Final answer
    x = 7,479,008.90

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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.