Home / 281,407,728.65-388,342,702.36-155,968,023.19

Finding the Fourth Proportional to 281,407,728.65, 388,342,702.36 and 155,968,023.19

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Solution

The fourth proportional to 281,407,728.65, 388,342,702.36 and 155,968,023.19 is: 215,235,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,407,728.65 : 388,342,702.36 = 155,968,023.19 : x
  2. Step 2: Convert to fraction form
    281,407,728.65/388,342,702.36 = 155,968,023.19/x
  3. Step 3: Cross multiply
    281,407,728.65x = 388,342,702.36 × 155,968,023.19
  4. Step 4: Simplify right side
    281,407,728.65x = 60,569,043,605,410,040
  5. Step 5: Solve for x
    x = 60,569,043,605,410,040/281,407,728.65
  6. Step 6: Final answer
    x = 215,235,892.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.