Home / 320,426,153.70-480,639,230.55-199,493,801.70

Finding the Fourth Proportional to 320,426,153.70, 480,639,230.55 and 199,493,801.70

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Solution

The fourth proportional to 320,426,153.70, 480,639,230.55 and 199,493,801.70 is: 299,240,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,426,153.70 : 480,639,230.55 = 199,493,801.70 : x
  2. Step 2: Convert to fraction form
    320,426,153.70/480,639,230.55 = 199,493,801.70/x
  3. Step 3: Cross multiply
    320,426,153.70x = 480,639,230.55 × 199,493,801.70
  4. Step 4: Simplify right side
    320,426,153.70x = 95,884,547,348,582,272
  5. Step 5: Solve for x
    x = 95,884,547,348,582,272/320,426,153.70
  6. Step 6: Final answer
    x = 299,240,702.55

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Similar ratio
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1.5x scale

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.