Home / 39,158,123.15-54,039,172.98-21,516,884.48

Finding the Fourth Proportional to 39,158,123.15, 54,039,172.98 and 21,516,884.48

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Solution

The fourth proportional to 39,158,123.15, 54,039,172.98 and 21,516,884.48 is: 29,693,829.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,158,123.15 : 54,039,172.98 = 21,516,884.48 : x
  2. Step 2: Convert to fraction form
    39,158,123.15/54,039,172.98 = 21,516,884.48/x
  3. Step 3: Cross multiply
    39,158,123.15x = 54,039,172.98 × 21,516,884.48
  4. Step 4: Simplify right side
    39,158,123.15x = 1,162,754,642,621,183.75
  5. Step 5: Solve for x
    x = 1,162,754,642,621,183.75/39,158,123.15
  6. Step 6: Final answer
    x = 29,693,829.76

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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.