Home / 287,976,881.52-397,407,839.70-162,555,477.12

Finding the Fourth Proportional to 287,976,881.52, 397,407,839.70 and 162,555,477.12

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Solution

The fourth proportional to 287,976,881.52, 397,407,839.70 and 162,555,477.12 is: 224,326,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,976,881.52 : 397,407,839.70 = 162,555,477.12 : x
  2. Step 2: Convert to fraction form
    287,976,881.52/397,407,839.70 = 162,555,477.12/x
  3. Step 3: Cross multiply
    287,976,881.52x = 397,407,839.70 × 162,555,477.12
  4. Step 4: Simplify right side
    287,976,881.52x = 64,600,820,993,661,976
  5. Step 5: Solve for x
    x = 64,600,820,993,661,976/287,976,881.52
  6. Step 6: Final answer
    x = 224,326,413.47

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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.