Home / 15,439,725.45-21,306,409.97-8,913,134.25

Finding the Fourth Proportional to 15,439,725.45, 21,306,409.97 and 8,913,134.25

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Solution

The fourth proportional to 15,439,725.45, 21,306,409.97 and 8,913,134.25 is: 12,299,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439,725.45 : 21,306,409.97 = 8,913,134.25 : x
  2. Step 2: Convert to fraction form
    15,439,725.45/21,306,409.97 = 8,913,134.25/x
  3. Step 3: Cross multiply
    15,439,725.45x = 21,306,409.97 × 8,913,134.25
  4. Step 4: Simplify right side
    15,439,725.45x = 189,906,892,403,582.81
  5. Step 5: Solve for x
    x = 189,906,892,403,582.81/15,439,725.45
  6. Step 6: Final answer
    x = 12,299,887.91

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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.