Home / 15,376,647.34-21,216,253.95-9,180,490.54

Finding the Fourth Proportional to 15,376,647.34, 21,216,253.95 and 9,180,490.54

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Solution

The fourth proportional to 15,376,647.34, 21,216,253.95 and 9,180,490.54 is: 12,666,975.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376,647.34 : 21,216,253.95 = 9,180,490.54 : x
  2. Step 2: Convert to fraction form
    15,376,647.34/21,216,253.95 = 9,180,490.54/x
  3. Step 3: Cross multiply
    15,376,647.34x = 21,216,253.95 × 9,180,490.54
  4. Step 4: Simplify right side
    15,376,647.34x = 194,775,618,682,212.59
  5. Step 5: Solve for x
    x = 194,775,618,682,212.59/15,376,647.34
  6. Step 6: Final answer
    x = 12,666,975.73

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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.