Home / 54,191,912.49-81,269,646.47-19,641,081.72

Finding the Fourth Proportional to 54,191,912.49, 81,269,646.47 and 19,641,081.72

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Solution

The fourth proportional to 54,191,912.49, 81,269,646.47 and 19,641,081.72 is: 29,455,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,191,912.49 : 81,269,646.47 = 19,641,081.72 : x
  2. Step 2: Convert to fraction form
    54,191,912.49/81,269,646.47 = 19,641,081.72/x
  3. Step 3: Cross multiply
    54,191,912.49x = 81,269,646.47 × 19,641,081.72
  4. Step 4: Simplify right side
    54,191,912.49x = 1,596,223,767,574,574
  5. Step 5: Solve for x
    x = 1,596,223,767,574,574/54,191,912.49
  6. Step 6: Final answer
    x = 29,455,018.18

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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.