Home / 98,989,971.40-148,555,815.90-55,813,342.60

Finding the Fourth Proportional to 98,989,971.40, 148,555,815.90 and 55,813,342.60

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Solution

The fourth proportional to 98,989,971.40, 148,555,815.90 and 55,813,342.60 is: 83,759,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,989,971.40 : 148,555,815.90 = 55,813,342.60 : x
  2. Step 2: Convert to fraction form
    98,989,971.40/148,555,815.90 = 55,813,342.60/x
  3. Step 3: Cross multiply
    98,989,971.40x = 148,555,815.90 × 55,813,342.60
  4. Step 4: Simplify right side
    98,989,971.40x = 8,291,396,648,049,228
  5. Step 5: Solve for x
    x = 8,291,396,648,049,228/98,989,971.40
  6. Step 6: Final answer
    x = 83,759,966.09

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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.