Home / 98,989,972.40-148,555,817.40-55,813,343.60

Finding the Fourth Proportional to 98,989,972.40, 148,555,817.40 and 55,813,343.60

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Solution

The fourth proportional to 98,989,972.40, 148,555,817.40 and 55,813,343.60 is: 83,759,967.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,989,972.40 : 148,555,817.40 = 55,813,343.60 : x
  2. Step 2: Convert to fraction form
    98,989,972.40/148,555,817.40 = 55,813,343.60/x
  3. Step 3: Cross multiply
    98,989,972.40x = 148,555,817.40 × 55,813,343.60
  4. Step 4: Simplify right side
    98,989,972.40x = 8,291,396,880,325,059
  5. Step 5: Solve for x
    x = 8,291,396,880,325,059/98,989,972.40
  6. Step 6: Final answer
    x = 83,759,967.59

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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.