Home / 28,617,081.07-39,492,071.85-15,564,428.56

Finding the Fourth Proportional to 28,617,081.07, 39,492,071.85 and 15,564,428.56

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Solution

The fourth proportional to 28,617,081.07, 39,492,071.85 and 15,564,428.56 is: 21,479,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617,081.07 : 39,492,071.85 = 15,564,428.56 : x
  2. Step 2: Convert to fraction form
    28,617,081.07/39,492,071.85 = 15,564,428.56/x
  3. Step 3: Cross multiply
    28,617,081.07x = 39,492,071.85 × 15,564,428.56
  4. Step 4: Simplify right side
    28,617,081.07x = 614,671,530,995,712.12
  5. Step 5: Solve for x
    x = 614,671,530,995,712.12/28,617,081.07
  6. Step 6: Final answer
    x = 21,479,183.34

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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.