Home / 319,011,733.80-478,517,600.70-204,125,999.40

Finding the Fourth Proportional to 319,011,733.80, 478,517,600.70 and 204,125,999.40

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Solution

The fourth proportional to 319,011,733.80, 478,517,600.70 and 204,125,999.40 is: 306,188,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,011,733.80 : 478,517,600.70 = 204,125,999.40 : x
  2. Step 2: Convert to fraction form
    319,011,733.80/478,517,600.70 = 204,125,999.40/x
  3. Step 3: Cross multiply
    319,011,733.80x = 478,517,600.70 × 204,125,999.40
  4. Step 4: Simplify right side
    319,011,733.80x = 97,677,883,473,377,632
  5. Step 5: Solve for x
    x = 97,677,883,473,377,632/319,011,733.80
  6. Step 6: Final answer
    x = 306,188,999.10

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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.