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Finding the Fourth Proportional to 388,314,186.70, 582,471,280.05 and 243,195,364.30

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Solution

The fourth proportional to 388,314,186.70, 582,471,280.05 and 243,195,364.30 is: 364,793,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,314,186.70 : 582,471,280.05 = 243,195,364.30 : x
  2. Step 2: Convert to fraction form
    388,314,186.70/582,471,280.05 = 243,195,364.30/x
  3. Step 3: Cross multiply
    388,314,186.70x = 582,471,280.05 × 243,195,364.30
  4. Step 4: Simplify right side
    388,314,186.70x = 141,654,315,146,047,072
  5. Step 5: Solve for x
    x = 141,654,315,146,047,072/388,314,186.70
  6. Step 6: Final answer
    x = 364,793,046.45

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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.