Home / 217,517,456.81-300,182,010.41-118,393,413.14

Finding the Fourth Proportional to 217,517,456.81, 300,182,010.41 and 118,393,413.14

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Solution

The fourth proportional to 217,517,456.81, 300,182,010.41 and 118,393,413.14 is: 163,387,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,517,456.81 : 300,182,010.41 = 118,393,413.14 : x
  2. Step 2: Convert to fraction form
    217,517,456.81/300,182,010.41 = 118,393,413.14/x
  3. Step 3: Cross multiply
    217,517,456.81x = 300,182,010.41 × 118,393,413.14
  4. Step 4: Simplify right side
    217,517,456.81x = 35,539,572,775,666,916
  5. Step 5: Solve for x
    x = 35,539,572,775,666,916/217,517,456.81
  6. Step 6: Final answer
    x = 163,387,220.95

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1.5x scale

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.