Home / 21,581,973.20-32,372,959.80-20,586,645.20

Finding the Fourth Proportional to 21,581,973.20, 32,372,959.80 and 20,586,645.20

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Solution

The fourth proportional to 21,581,973.20, 32,372,959.80 and 20,586,645.20 is: 30,879,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,973.20 : 32,372,959.80 = 20,586,645.20 : x
  2. Step 2: Convert to fraction form
    21,581,973.20/32,372,959.80 = 20,586,645.20/x
  3. Step 3: Cross multiply
    21,581,973.20x = 32,372,959.80 × 20,586,645.20
  4. Step 4: Simplify right side
    21,581,973.20x = 666,450,637,476,463
  5. Step 5: Solve for x
    x = 666,450,637,476,463/21,581,973.20
  6. Step 6: Final answer
    x = 30,879,967.80

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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.