Home / 15,585,890.56-21,509,193.28-8,710,372.56

Finding the Fourth Proportional to 15,585,890.56, 21,509,193.28 and 8,710,372.56

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Solution

The fourth proportional to 15,585,890.56, 21,509,193.28 and 8,710,372.56 is: 12,020,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585,890.56 : 21,509,193.28 = 8,710,372.56 : x
  2. Step 2: Convert to fraction form
    15,585,890.56/21,509,193.28 = 8,710,372.56/x
  3. Step 3: Cross multiply
    15,585,890.56x = 21,509,193.28 × 8,710,372.56
  4. Step 4: Simplify right side
    15,585,890.56x = 187,353,086,933,848.41
  5. Step 5: Solve for x
    x = 187,353,086,933,848.41/15,585,890.56
  6. Step 6: Final answer
    x = 12,020,685.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.