Home / 15,422,666.09-21,283,146.90-8,453,730.65

Finding the Fourth Proportional to 15,422,666.09, 21,283,146.90 and 8,453,730.65

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Solution

The fourth proportional to 15,422,666.09, 21,283,146.90 and 8,453,730.65 is: 11,666,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422,666.09 : 21,283,146.90 = 8,453,730.65 : x
  2. Step 2: Convert to fraction form
    15,422,666.09/21,283,146.90 = 8,453,730.65/x
  3. Step 3: Cross multiply
    15,422,666.09x = 21,283,146.90 × 8,453,730.65
  4. Step 4: Simplify right side
    15,422,666.09x = 179,921,991,170,566.72
  5. Step 5: Solve for x
    x = 179,921,991,170,566.72/15,422,666.09
  6. Step 6: Final answer
    x = 11,666,075.77

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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.