Home / 28,458,958.92-39,273,355-15,406,208.16

Finding the Fourth Proportional to 28,458,958.92, 39,273,355 and 15,406,208.16

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Solution

The fourth proportional to 28,458,958.92, 39,273,355 and 15,406,208.16 is: 21,260,562.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458,958.92 : 39,273,355 = 15,406,208.16 : x
  2. Step 2: Convert to fraction form
    28,458,958.92/39,273,355 = 15,406,208.16/x
  3. Step 3: Cross multiply
    28,458,958.92x = 39,273,355 × 15,406,208.16
  4. Step 4: Simplify right side
    28,458,958.92x = 605,053,482,271,576.75
  5. Step 5: Solve for x
    x = 605,053,482,271,576.75/28,458,958.92
  6. Step 6: Final answer
    x = 21,260,562.76

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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.