Home / 14,478,856.66-19,982,054.43-8,200,500.78

Finding the Fourth Proportional to 14,478,856.66, 19,982,054.43 and 8,200,500.78

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Solution

The fourth proportional to 14,478,856.66, 19,982,054.43 and 8,200,500.78 is: 11,317,388.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478,856.66 : 19,982,054.43 = 8,200,500.78 : x
  2. Step 2: Convert to fraction form
    14,478,856.66/19,982,054.43 = 8,200,500.78/x
  3. Step 3: Cross multiply
    14,478,856.66x = 19,982,054.43 × 8,200,500.78
  4. Step 4: Simplify right side
    14,478,856.66x = 163,862,852,939,217.47
  5. Step 5: Solve for x
    x = 163,862,852,939,217.47/14,478,856.66
  6. Step 6: Final answer
    x = 11,317,388.99

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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.