Home / 20,200,265.84-27,857,904.36-15,790,574

Finding the Fourth Proportional to 20,200,265.84, 27,857,904.36 and 15,790,574

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Solution

The fourth proportional to 20,200,265.84, 27,857,904.36 and 15,790,574 is: 21,776,559.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200,265.84 : 27,857,904.36 = 15,790,574 : x
  2. Step 2: Convert to fraction form
    20,200,265.84/27,857,904.36 = 15,790,574/x
  3. Step 3: Cross multiply
    20,200,265.84x = 27,857,904.36 × 15,790,574
  4. Step 4: Simplify right side
    20,200,265.84x = 439,892,300,281,502.62
  5. Step 5: Solve for x
    x = 439,892,300,281,502.62/20,200,265.84
  6. Step 6: Final answer
    x = 21,776,559.96

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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.