Home / 39,019,313.46-53,844,127.36-21,378,191.84

Finding the Fourth Proportional to 39,019,313.46, 53,844,127.36 and 21,378,191.84

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Solution

The fourth proportional to 39,019,313.46, 53,844,127.36 and 21,378,191.84 is: 29,500,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,019,313.46 : 53,844,127.36 = 21,378,191.84 : x
  2. Step 2: Convert to fraction form
    39,019,313.46/53,844,127.36 = 21,378,191.84/x
  3. Step 3: Cross multiply
    39,019,313.46x = 53,844,127.36 × 21,378,191.84
  4. Step 4: Simplify right side
    39,019,313.46x = 1,151,090,083,836,806.75
  5. Step 5: Solve for x
    x = 1,151,090,083,836,806.75/39,019,313.46
  6. Step 6: Final answer
    x = 29,500,521.20

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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.