Home / 398,099,257.80-597,148,886.70-330,074,809.80

Finding the Fourth Proportional to 398,099,257.80, 597,148,886.70 and 330,074,809.80

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Solution

The fourth proportional to 398,099,257.80, 597,148,886.70 and 330,074,809.80 is: 495,112,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,099,257.80 : 597,148,886.70 = 330,074,809.80 : x
  2. Step 2: Convert to fraction form
    398,099,257.80/597,148,886.70 = 330,074,809.80/x
  3. Step 3: Cross multiply
    398,099,257.80x = 597,148,886.70 × 330,074,809.80
  4. Step 4: Simplify right side
    398,099,257.80x = 197,103,805,199,784,288
  5. Step 5: Solve for x
    x = 197,103,805,199,784,288/398,099,257.80
  6. Step 6: Final answer
    x = 495,112,214.70

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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.