Home / 15,312,273.60-21,131,186.40-8,436,656.64

Finding the Fourth Proportional to 15,312,273.60, 21,131,186.40 and 8,436,656.64

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Solution

The fourth proportional to 15,312,273.60, 21,131,186.40 and 8,436,656.64 is: 11,642,723.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,273.60 : 21,131,186.40 = 8,436,656.64 : x
  2. Step 2: Convert to fraction form
    15,312,273.60/21,131,186.40 = 8,436,656.64/x
  3. Step 3: Cross multiply
    15,312,273.60x = 21,131,186.40 × 8,436,656.64
  4. Step 4: Simplify right side
    15,312,273.60x = 178,276,564,052,637.69
  5. Step 5: Solve for x
    x = 178,276,564,052,637.69/15,312,273.60
  6. Step 6: Final answer
    x = 11,642,723.26

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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.