Home / 98,015,712.80-146,810,992.80-81,009,600.80

Finding the Fourth Proportional to 98,015,712.80, 146,810,992.80 and 81,009,600.80

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Solution

The fourth proportional to 98,015,712.80, 146,810,992.80 and 81,009,600.80 is: 121,338,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,015,712.80 : 146,810,992.80 = 81,009,600.80 : x
  2. Step 2: Convert to fraction form
    98,015,712.80/146,810,992.80 = 81,009,600.80/x
  3. Step 3: Cross multiply
    98,015,712.80x = 146,810,992.80 × 81,009,600.80
  4. Step 4: Simplify right side
    98,015,712.80x = 11,893,099,919,779,674
  5. Step 5: Solve for x
    x = 11,893,099,919,779,674/98,015,712.80
  6. Step 6: Final answer
    x = 121,338,707.64

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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.