Home / 18,989,423.52-28,484,135.64-4,612,394.44

Finding the Fourth Proportional to 18,989,423.52, 28,484,135.64 and 4,612,394.44

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Solution

The fourth proportional to 18,989,423.52, 28,484,135.64 and 4,612,394.44 is: 6,918,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,423.52 : 28,484,135.64 = 4,612,394.44 : x
  2. Step 2: Convert to fraction form
    18,989,423.52/28,484,135.64 = 4,612,394.44/x
  3. Step 3: Cross multiply
    18,989,423.52x = 28,484,135.64 × 4,612,394.44
  4. Step 4: Simplify right side
    18,989,423.52x = 131,380,068,688,659.19
  5. Step 5: Solve for x
    x = 131,380,068,688,659.19/18,989,423.52
  6. Step 6: Final answer
    x = 6,918,591.74

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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.