Home / 7,129,628.70-10,694,443.05-7,066,643.10

Finding the Fourth Proportional to 7,129,628.70, 10,694,443.05 and 7,066,643.10

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Solution

The fourth proportional to 7,129,628.70, 10,694,443.05 and 7,066,643.10 is: 10,599,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,628.70 : 10,694,443.05 = 7,066,643.10 : x
  2. Step 2: Convert to fraction form
    7,129,628.70/10,694,443.05 = 7,066,643.10/x
  3. Step 3: Cross multiply
    7,129,628.70x = 10,694,443.05 × 7,066,643.10
  4. Step 4: Simplify right side
    7,129,628.70x = 75,573,812,187,625.45
  5. Step 5: Solve for x
    x = 75,573,812,187,625.45/7,129,628.70
  6. Step 6: Final answer
    x = 10,599,964.65

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Double scale
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Similar ratio
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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.