Home / 285,434,909.70-428,152,364.55-199,341,467.70

Finding the Fourth Proportional to 285,434,909.70, 428,152,364.55 and 199,341,467.70

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Solution

The fourth proportional to 285,434,909.70, 428,152,364.55 and 199,341,467.70 is: 299,012,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,434,909.70 : 428,152,364.55 = 199,341,467.70 : x
  2. Step 2: Convert to fraction form
    285,434,909.70/428,152,364.55 = 199,341,467.70/x
  3. Step 3: Cross multiply
    285,434,909.70x = 428,152,364.55 × 199,341,467.70
  4. Step 4: Simplify right side
    285,434,909.70x = 85,348,520,748,622,448
  5. Step 5: Solve for x
    x = 85,348,520,748,622,448/285,434,909.70
  6. Step 6: Final answer
    x = 299,012,201.55

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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.