Home / 15,312,274.60-21,131,187.78-8,436,657.64

Finding the Fourth Proportional to 15,312,274.60, 21,131,187.78 and 8,436,657.64

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Solution

The fourth proportional to 15,312,274.60, 21,131,187.78 and 8,436,657.64 is: 11,642,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,274.60 : 21,131,187.78 = 8,436,657.64 : x
  2. Step 2: Convert to fraction form
    15,312,274.60/21,131,187.78 = 8,436,657.64/x
  3. Step 3: Cross multiply
    15,312,274.60x = 21,131,187.78 × 8,436,657.64
  4. Step 4: Simplify right side
    15,312,274.60x = 178,276,596,826,411.66
  5. Step 5: Solve for x
    x = 178,276,596,826,411.66/15,312,274.60
  6. Step 6: Final answer
    x = 11,642,724.64

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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.