Home / 489,904,349.40-734,856,524.10-368,971,997.40

Finding the Fourth Proportional to 489,904,349.40, 734,856,524.10 and 368,971,997.40

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Solution

The fourth proportional to 489,904,349.40, 734,856,524.10 and 368,971,997.40 is: 553,457,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904,349.40 : 734,856,524.10 = 368,971,997.40 : x
  2. Step 2: Convert to fraction form
    489,904,349.40/734,856,524.10 = 368,971,997.40/x
  3. Step 3: Cross multiply
    489,904,349.40x = 734,856,524.10 × 368,971,997.40
  4. Step 4: Simplify right side
    489,904,349.40x = 271,141,479,499,598,240
  5. Step 5: Solve for x
    x = 271,141,479,499,598,240/489,904,349.40
  6. Step 6: Final answer
    x = 553,457,996.10

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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.