Home / 11,855,149.78-16,360,123.36-6,422,641.78

Finding the Fourth Proportional to 11,855,149.78, 16,360,123.36 and 6,422,641.78

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Solution

The fourth proportional to 11,855,149.78, 16,360,123.36 and 6,422,641.78 is: 8,863,254.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855,149.78 : 16,360,123.36 = 6,422,641.78 : x
  2. Step 2: Convert to fraction form
    11,855,149.78/16,360,123.36 = 6,422,641.78/x
  3. Step 3: Cross multiply
    11,855,149.78x = 16,360,123.36 × 6,422,641.78
  4. Step 4: Simplify right side
    11,855,149.78x = 105,075,211,817,889.98
  5. Step 5: Solve for x
    x = 105,075,211,817,889.98/11,855,149.78
  6. Step 6: Final answer
    x = 8,863,254.68

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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.