Home / 21,042,012.47-29,058,031.94-19,895,658.08

Finding the Fourth Proportional to 21,042,012.47, 29,058,031.94 and 19,895,658.08

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Solution

The fourth proportional to 21,042,012.47, 29,058,031.94 and 19,895,658.08 is: 27,474,970.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,012.47 : 29,058,031.94 = 19,895,658.08 : x
  2. Step 2: Convert to fraction form
    21,042,012.47/29,058,031.94 = 19,895,658.08/x
  3. Step 3: Cross multiply
    21,042,012.47x = 29,058,031.94 × 19,895,658.08
  4. Step 4: Simplify right side
    21,042,012.47x = 578,128,667,711,190.62
  5. Step 5: Solve for x
    x = 578,128,667,711,190.62/21,042,012.47
  6. Step 6: Final answer
    x = 27,474,970.31

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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.