Home / 121,118,016.60-181,719,015.30-53,009,587.80

Finding the Fourth Proportional to 121,118,016.60, 181,719,015.30 and 53,009,587.80

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Solution

The fourth proportional to 121,118,016.60, 181,719,015.30 and 53,009,587.80 is: 79,532,759.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,118,016.60 : 181,719,015.30 = 53,009,587.80 : x
  2. Step 2: Convert to fraction form
    121,118,016.60/181,719,015.30 = 53,009,587.80/x
  3. Step 3: Cross multiply
    121,118,016.60x = 181,719,015.30 × 53,009,587.80
  4. Step 4: Simplify right side
    121,118,016.60x = 9,632,850,096,474,894
  5. Step 5: Solve for x
    x = 9,632,850,096,474,894/121,118,016.60
  6. Step 6: Final answer
    x = 79,532,759.59

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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.