Home / 7,780,474.51-11,671,272.32-2,988,163.78

Finding the Fourth Proportional to 7,780,474.51, 11,671,272.32 and 2,988,163.78

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Solution

The fourth proportional to 7,780,474.51, 11,671,272.32 and 2,988,163.78 is: 4,482,460.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780,474.51 : 11,671,272.32 = 2,988,163.78 : x
  2. Step 2: Convert to fraction form
    7,780,474.51/11,671,272.32 = 2,988,163.78/x
  3. Step 3: Cross multiply
    7,780,474.51x = 11,671,272.32 × 2,988,163.78
  4. Step 4: Simplify right side
    7,780,474.51x = 34,875,673,169,021.57
  5. Step 5: Solve for x
    x = 34,875,673,169,021.57/7,780,474.51
  6. Step 6: Final answer
    x = 4,482,460.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.