Home / 5,120,652.11-7,678,331.89-1,881,362.48

Finding the Fourth Proportional to 5,120,652.11, 7,678,331.89 and 1,881,362.48

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Solution

The fourth proportional to 5,120,652.11, 7,678,331.89 and 1,881,362.48 is: 2,821,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,652.11 : 7,678,331.89 = 1,881,362.48 : x
  2. Step 2: Convert to fraction form
    5,120,652.11/7,678,331.89 = 1,881,362.48/x
  3. Step 3: Cross multiply
    5,120,652.11x = 7,678,331.89 × 1,881,362.48
  4. Step 4: Simplify right side
    5,120,652.11x = 14,445,725,483,738.42
  5. Step 5: Solve for x
    x = 14,445,725,483,738.42/5,120,652.11
  6. Step 6: Final answer
    x = 2,821,071.45

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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.