Home / 28,283,479.19-42,407,856.16-10,991,489.54

Finding the Fourth Proportional to 28,283,479.19, 42,407,856.16 and 10,991,489.54

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Solution

The fourth proportional to 28,283,479.19, 42,407,856.16 and 10,991,489.54 is: 16,480,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283,479.19 : 42,407,856.16 = 10,991,489.54 : x
  2. Step 2: Convert to fraction form
    28,283,479.19/42,407,856.16 = 10,991,489.54/x
  3. Step 3: Cross multiply
    28,283,479.19x = 42,407,856.16 × 10,991,489.54
  4. Step 4: Simplify right side
    28,283,479.19x = 466,125,507,218,784.69
  5. Step 5: Solve for x
    x = 466,125,507,218,784.69/28,283,479.19
  6. Step 6: Final answer
    x = 16,480,486.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.