Home / 21,137,537.80-31,706,306.70-19,709,864.20

Finding the Fourth Proportional to 21,137,537.80, 31,706,306.70 and 19,709,864.20

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Solution

The fourth proportional to 21,137,537.80, 31,706,306.70 and 19,709,864.20 is: 29,564,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137,537.80 : 31,706,306.70 = 19,709,864.20 : x
  2. Step 2: Convert to fraction form
    21,137,537.80/31,706,306.70 = 19,709,864.20/x
  3. Step 3: Cross multiply
    21,137,537.80x = 31,706,306.70 × 19,709,864.20
  4. Step 4: Simplify right side
    21,137,537.80x = 624,926,999,340,550.12
  5. Step 5: Solve for x
    x = 624,926,999,340,550.12/21,137,537.80
  6. Step 6: Final answer
    x = 29,564,796.30

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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.