Home / 388,029,272.40-582,043,908.60-365,071,021.20

Finding the Fourth Proportional to 388,029,272.40, 582,043,908.60 and 365,071,021.20

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Solution

The fourth proportional to 388,029,272.40, 582,043,908.60 and 365,071,021.20 is: 547,606,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,029,272.40 : 582,043,908.60 = 365,071,021.20 : x
  2. Step 2: Convert to fraction form
    388,029,272.40/582,043,908.60 = 365,071,021.20/x
  3. Step 3: Cross multiply
    388,029,272.40x = 582,043,908.60 × 365,071,021.20
  4. Step 4: Simplify right side
    388,029,272.40x = 212,487,364,095,841,472
  5. Step 5: Solve for x
    x = 212,487,364,095,841,472/388,029,272.40
  6. Step 6: Final answer
    x = 547,606,531.80

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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.