Home / 21,250,051.30-31,882,950.15-20,462,731.30

Finding the Fourth Proportional to 21,250,051.30, 31,882,950.15 and 20,462,731.30

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Solution

The fourth proportional to 21,250,051.30, 31,882,950.15 and 20,462,731.30 is: 30,701,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250,051.30 : 31,882,950.15 = 20,462,731.30 : x
  2. Step 2: Convert to fraction form
    21,250,051.30/31,882,950.15 = 20,462,731.30/x
  3. Step 3: Cross multiply
    21,250,051.30x = 31,882,950.15 × 20,462,731.30
  4. Step 4: Simplify right side
    21,250,051.30x = 652,412,241,970,744.75
  5. Step 5: Solve for x
    x = 652,412,241,970,744.75/21,250,051.30
  6. Step 6: Final answer
    x = 30,701,678.45

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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.