Home / 28,732,290.64-39,651,403.28-15,680,388.74

Finding the Fourth Proportional to 28,732,290.64, 39,651,403.28 and 15,680,388.74

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Solution

The fourth proportional to 28,732,290.64, 39,651,403.28 and 15,680,388.74 is: 21,639,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732,290.64 : 39,651,403.28 = 15,680,388.74 : x
  2. Step 2: Convert to fraction form
    28,732,290.64/39,651,403.28 = 15,680,388.74/x
  3. Step 3: Cross multiply
    28,732,290.64x = 39,651,403.28 × 15,680,388.74
  4. Step 4: Simplify right side
    28,732,290.64x = 621,749,417,240,252
  5. Step 5: Solve for x
    x = 621,749,417,240,252/28,732,290.64
  6. Step 6: Final answer
    x = 21,639,396.07

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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.