Home / 39,318,130.10-54,259,271.43-21,915,578.81

Finding the Fourth Proportional to 39,318,130.10, 54,259,271.43 and 21,915,578.81

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Solution

The fourth proportional to 39,318,130.10, 54,259,271.43 and 21,915,578.81 is: 30,243,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318,130.10 : 54,259,271.43 = 21,915,578.81 : x
  2. Step 2: Convert to fraction form
    39,318,130.10/54,259,271.43 = 21,915,578.81/x
  3. Step 3: Cross multiply
    39,318,130.10x = 54,259,271.43 × 21,915,578.81
  4. Step 4: Simplify right side
    39,318,130.10x = 1,189,123,339,197,346.25
  5. Step 5: Solve for x
    x = 1,189,123,339,197,346.25/39,318,130.10
  6. Step 6: Final answer
    x = 30,243,639.16

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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.