Home / 158,461,413.83-218,672,531.68-91,478,111.33

Finding the Fourth Proportional to 158,461,413.83, 218,672,531.68 and 91,478,111.33

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Solution

The fourth proportional to 158,461,413.83, 218,672,531.68 and 91,478,111.33 is: 126,237,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,461,413.83 : 218,672,531.68 = 91,478,111.33 : x
  2. Step 2: Convert to fraction form
    158,461,413.83/218,672,531.68 = 91,478,111.33/x
  3. Step 3: Cross multiply
    158,461,413.83x = 218,672,531.68 × 91,478,111.33
  4. Step 4: Simplify right side
    158,461,413.83x = 20,003,750,198,153,976
  5. Step 5: Solve for x
    x = 20,003,750,198,153,976/158,461,413.83
  6. Step 6: Final answer
    x = 126,237,357.82

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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.