Home / 5,215,000.90-7,822,501.35-1,428,477.70

Finding the Fourth Proportional to 5,215,000.90, 7,822,501.35 and 1,428,477.70

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Solution

The fourth proportional to 5,215,000.90, 7,822,501.35 and 1,428,477.70 is: 2,142,716.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,000.90 : 7,822,501.35 = 1,428,477.70 : x
  2. Step 2: Convert to fraction form
    5,215,000.90/7,822,501.35 = 1,428,477.70/x
  3. Step 3: Cross multiply
    5,215,000.90x = 7,822,501.35 × 1,428,477.70
  4. Step 4: Simplify right side
    5,215,000.90x = 11,174,268,736,694.89
  5. Step 5: Solve for x
    x = 11,174,268,736,694.89/5,215,000.90
  6. Step 6: Final answer
    x = 2,142,716.55

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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.