Home / 15,310,666.26-21,128,656.09-8,341,322.38

Finding the Fourth Proportional to 15,310,666.26, 21,128,656.09 and 8,341,322.38

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Solution

The fourth proportional to 15,310,666.26, 21,128,656.09 and 8,341,322.38 is: 11,510,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310,666.26 : 21,128,656.09 = 8,341,322.38 : x
  2. Step 2: Convert to fraction form
    15,310,666.26/21,128,656.09 = 8,341,322.38/x
  3. Step 3: Cross multiply
    15,310,666.26x = 21,128,656.09 × 8,341,322.38
  4. Step 4: Simplify right side
    15,310,666.26x = 176,240,931,850,282.03
  5. Step 5: Solve for x
    x = 176,240,931,850,282.03/15,310,666.26
  6. Step 6: Final answer
    x = 11,510,990.37

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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.