Home / 7,729,143.72-10,666,015.38-4,291,296.36

Finding the Fourth Proportional to 7,729,143.72, 10,666,015.38 and 4,291,296.36

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Solution

The fourth proportional to 7,729,143.72, 10,666,015.38 and 4,291,296.36 is: 5,921,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729,143.72 : 10,666,015.38 = 4,291,296.36 : x
  2. Step 2: Convert to fraction form
    7,729,143.72/10,666,015.38 = 4,291,296.36/x
  3. Step 3: Cross multiply
    7,729,143.72x = 10,666,015.38 × 4,291,296.36
  4. Step 4: Simplify right side
    7,729,143.72x = 45,771,032,975,898.02
  5. Step 5: Solve for x
    x = 45,771,032,975,898.02/7,729,143.72
  6. Step 6: Final answer
    x = 5,921,876.29

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1.5x scale

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.