Home / 120,182,908.60-165,852,413.93-65,178,765.10

Finding the Fourth Proportional to 120,182,908.60, 165,852,413.93 and 65,178,765.10

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Solution

The fourth proportional to 120,182,908.60, 165,852,413.93 and 65,178,765.10 is: 89,946,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,182,908.60 : 165,852,413.93 = 65,178,765.10 : x
  2. Step 2: Convert to fraction form
    120,182,908.60/165,852,413.93 = 65,178,765.10/x
  3. Step 3: Cross multiply
    120,182,908.60x = 165,852,413.93 × 65,178,765.10
  4. Step 4: Simplify right side
    120,182,908.60x = 10,810,055,528,811,438
  5. Step 5: Solve for x
    x = 10,810,055,528,811,438/120,182,908.60
  6. Step 6: Final answer
    x = 89,946,695.87

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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.