Home / 21,581,045.20-32,371,567.80-19,817,448.40

Finding the Fourth Proportional to 21,581,045.20, 32,371,567.80 and 19,817,448.40

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Solution

The fourth proportional to 21,581,045.20, 32,371,567.80 and 19,817,448.40 is: 29,726,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,045.20 : 32,371,567.80 = 19,817,448.40 : x
  2. Step 2: Convert to fraction form
    21,581,045.20/32,371,567.80 = 19,817,448.40/x
  3. Step 3: Cross multiply
    21,581,045.20x = 32,371,567.80 × 19,817,448.40
  4. Step 4: Simplify right side
    21,581,045.20x = 641,521,874,503,601.50
  5. Step 5: Solve for x
    x = 641,521,874,503,601.50/21,581,045.20
  6. Step 6: Final answer
    x = 29,726,172.60

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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.