Home / 15,420,716.76-21,280,715.92-8,545,313.64

Finding the Fourth Proportional to 15,420,716.76, 21,280,715.92 and 8,545,313.64

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Solution

The fourth proportional to 15,420,716.76, 21,280,715.92 and 8,545,313.64 is: 11,792,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,716.76 : 21,280,715.92 = 8,545,313.64 : x
  2. Step 2: Convert to fraction form
    15,420,716.76/21,280,715.92 = 8,545,313.64/x
  3. Step 3: Cross multiply
    15,420,716.76x = 21,280,715.92 × 8,545,313.64
  4. Step 4: Simplify right side
    15,420,716.76x = 181,850,392,020,141.19
  5. Step 5: Solve for x
    x = 181,850,392,020,141.19/15,420,716.76
  6. Step 6: Final answer
    x = 11,792,603.08

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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.