Home / 39,286,965.80-54,213,226.08-21,645,097.76

Finding the Fourth Proportional to 39,286,965.80, 54,213,226.08 and 21,645,097.76

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Solution

The fourth proportional to 39,286,965.80, 54,213,226.08 and 21,645,097.76 is: 29,868,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,286,965.80 : 54,213,226.08 = 21,645,097.76 : x
  2. Step 2: Convert to fraction form
    39,286,965.80/54,213,226.08 = 21,645,097.76/x
  3. Step 3: Cross multiply
    39,286,965.80x = 54,213,226.08 × 21,645,097.76
  4. Step 4: Simplify right side
    39,286,965.80x = 1,173,450,578,386,581.75
  5. Step 5: Solve for x
    x = 1,173,450,578,386,581.75/39,286,965.80
  6. Step 6: Final answer
    x = 29,868,699.57

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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.