Home / 7,151,964.76-9,869,642.82-3,888,780.64

Finding the Fourth Proportional to 7,151,964.76, 9,869,642.82 and 3,888,780.64

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Solution

The fourth proportional to 7,151,964.76, 9,869,642.82 and 3,888,780.64 is: 5,366,480.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151,964.76 : 9,869,642.82 = 3,888,780.64 : x
  2. Step 2: Convert to fraction form
    7,151,964.76/9,869,642.82 = 3,888,780.64/x
  3. Step 3: Cross multiply
    7,151,964.76x = 9,869,642.82 × 3,888,780.64
  4. Step 4: Simplify right side
    7,151,964.76x = 38,380,875,886,519.70
  5. Step 5: Solve for x
    x = 38,380,875,886,519.70/7,151,964.76
  6. Step 6: Final answer
    x = 5,366,480.00

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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.