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Finding the Fourth Proportional to 308,775,014.40, 463,162,521.60 and 265,728,293.40

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Solution

The fourth proportional to 308,775,014.40, 463,162,521.60 and 265,728,293.40 is: 398,592,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,775,014.40 : 463,162,521.60 = 265,728,293.40 : x
  2. Step 2: Convert to fraction form
    308,775,014.40/463,162,521.60 = 265,728,293.40/x
  3. Step 3: Cross multiply
    308,775,014.40x = 463,162,521.60 × 265,728,293.40
  4. Step 4: Simplify right side
    308,775,014.40x = 123,075,386,431,608,640
  5. Step 5: Solve for x
    x = 123,075,386,431,608,640/308,775,014.40
  6. Step 6: Final answer
    x = 398,592,440.10

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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.