Home / 5,428,738.66-8,143,038.87-1,330,101.22

Finding the Fourth Proportional to 5,428,738.66, 8,143,038.87 and 1,330,101.22

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Solution

The fourth proportional to 5,428,738.66, 8,143,038.87 and 1,330,101.22 is: 1,995,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,738.66 : 8,143,038.87 = 1,330,101.22 : x
  2. Step 2: Convert to fraction form
    5,428,738.66/8,143,038.87 = 1,330,101.22/x
  3. Step 3: Cross multiply
    5,428,738.66x = 8,143,038.87 × 1,330,101.22
  4. Step 4: Simplify right side
    5,428,738.66x = 10,831,065,935,494.42
  5. Step 5: Solve for x
    x = 10,831,065,935,494.42/5,428,738.66
  6. Step 6: Final answer
    x = 1,995,134.89

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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.