Home / 81,325,228.32-121,989,300.40-29,546,603.68

Finding the Fourth Proportional to 81,325,228.32, 121,989,300.40 and 29,546,603.68

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Solution

The fourth proportional to 81,325,228.32, 121,989,300.40 and 29,546,603.68 is: 44,320,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,325,228.32 : 121,989,300.40 = 29,546,603.68 : x
  2. Step 2: Convert to fraction form
    81,325,228.32/121,989,300.40 = 29,546,603.68/x
  3. Step 3: Cross multiply
    81,325,228.32x = 121,989,300.40 × 29,546,603.68
  4. Step 4: Simplify right side
    81,325,228.32x = 3,604,369,512,119,265.50
  5. Step 5: Solve for x
    x = 3,604,369,512,119,265.50/81,325,228.32
  6. Step 6: Final answer
    x = 44,320,435.20

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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.