Home / 20,915,551.08-31,277,011.08-19,895,184.36

Finding the Fourth Proportional to 20,915,551.08, 31,277,011.08 and 19,895,184.36

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Solution

The fourth proportional to 20,915,551.08, 31,277,011.08 and 19,895,184.36 is: 29,751,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,551.08 : 31,277,011.08 = 19,895,184.36 : x
  2. Step 2: Convert to fraction form
    20,915,551.08/31,277,011.08 = 19,895,184.36/x
  3. Step 3: Cross multiply
    20,915,551.08x = 31,277,011.08 × 19,895,184.36
  4. Step 4: Simplify right side
    20,915,551.08x = 622,261,901,666,362.62
  5. Step 5: Solve for x
    x = 622,261,901,666,362.62/20,915,551.08
  6. Step 6: Final answer
    x = 29,751,159.76

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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.