Home / 21,556,903.90-32,288,116.65-18,722,551.90

Finding the Fourth Proportional to 21,556,903.90, 32,288,116.65 and 18,722,551.90

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Solution

The fourth proportional to 21,556,903.90, 32,288,116.65 and 18,722,551.90 is: 28,042,799.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556,903.90 : 32,288,116.65 = 18,722,551.90 : x
  2. Step 2: Convert to fraction form
    21,556,903.90/32,288,116.65 = 18,722,551.90/x
  3. Step 3: Cross multiply
    21,556,903.90x = 32,288,116.65 × 18,722,551.90
  4. Step 4: Simplify right side
    21,556,903.90x = 604,515,939,732,879
  5. Step 5: Solve for x
    x = 604,515,939,732,879/21,556,903.90
  6. Step 6: Final answer
    x = 28,042,799.77

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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.