Home / 124,398,413.60-186,681,601.20-81,162,298.40

Finding the Fourth Proportional to 124,398,413.60, 186,681,601.20 and 81,162,298.40

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Solution

The fourth proportional to 124,398,413.60, 186,681,601.20 and 81,162,298.40 is: 121,798,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,398,413.60 : 186,681,601.20 = 81,162,298.40 : x
  2. Step 2: Convert to fraction form
    124,398,413.60/186,681,601.20 = 81,162,298.40/x
  3. Step 3: Cross multiply
    124,398,413.60x = 186,681,601.20 × 81,162,298.40
  4. Step 4: Simplify right side
    124,398,413.60x = 15,151,507,822,384,198
  5. Step 5: Solve for x
    x = 15,151,507,822,384,198/124,398,413.60
  6. Step 6: Final answer
    x = 121,798,239.90

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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.