Home / 18,920,438.40-28,347,998.40-8,802,307.20

Finding the Fourth Proportional to 18,920,438.40, 28,347,998.40 and 8,802,307.20

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Solution

The fourth proportional to 18,920,438.40, 28,347,998.40 and 8,802,307.20 is: 13,188,266.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920,438.40 : 28,347,998.40 = 8,802,307.20 : x
  2. Step 2: Convert to fraction form
    18,920,438.40/28,347,998.40 = 8,802,307.20/x
  3. Step 3: Cross multiply
    18,920,438.40x = 28,347,998.40 × 8,802,307.20
  4. Step 4: Simplify right side
    18,920,438.40x = 249,527,790,421,908.44
  5. Step 5: Solve for x
    x = 249,527,790,421,908.44/18,920,438.40
  6. Step 6: Final answer
    x = 13,188,266.84

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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.