Home / 5,478,308.64-8,218,495.71-1,690,905.78

Finding the Fourth Proportional to 5,478,308.64, 8,218,495.71 and 1,690,905.78

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Solution

The fourth proportional to 5,478,308.64, 8,218,495.71 and 1,690,905.78 is: 2,536,677.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478,308.64 : 8,218,495.71 = 1,690,905.78 : x
  2. Step 2: Convert to fraction form
    5,478,308.64/8,218,495.71 = 1,690,905.78/x
  3. Step 3: Cross multiply
    5,478,308.64x = 8,218,495.71 × 1,690,905.78
  4. Step 4: Simplify right side
    5,478,308.64x = 13,896,701,898,944.20
  5. Step 5: Solve for x
    x = 13,896,701,898,944.20/5,478,308.64
  6. Step 6: Final answer
    x = 2,536,677.43

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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.