Home / 15,416,259.78-21,264,806.22-9,916,796.72

Finding the Fourth Proportional to 15,416,259.78, 21,264,806.22 and 9,916,796.72

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Solution

The fourth proportional to 15,416,259.78, 21,264,806.22 and 9,916,796.72 is: 13,678,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416,259.78 : 21,264,806.22 = 9,916,796.72 : x
  2. Step 2: Convert to fraction form
    15,416,259.78/21,264,806.22 = 9,916,796.72/x
  3. Step 3: Cross multiply
    15,416,259.78x = 21,264,806.22 × 9,916,796.72
  4. Step 4: Simplify right side
    15,416,259.78x = 210,878,760,573,931.59
  5. Step 5: Solve for x
    x = 210,878,760,573,931.59/15,416,259.78
  6. Step 6: Final answer
    x = 13,678,983.33

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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.