Home / 9,989,946.40-14,984,919.60-5,439,236.80

Finding the Fourth Proportional to 9,989,946.40, 14,984,919.60 and 5,439,236.80

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Solution

The fourth proportional to 9,989,946.40, 14,984,919.60 and 5,439,236.80 is: 8,158,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,946.40 : 14,984,919.60 = 5,439,236.80 : x
  2. Step 2: Convert to fraction form
    9,989,946.40/14,984,919.60 = 5,439,236.80/x
  3. Step 3: Cross multiply
    9,989,946.40x = 14,984,919.60 × 5,439,236.80
  4. Step 4: Simplify right side
    9,989,946.40x = 81,506,526,133,361.28
  5. Step 5: Solve for x
    x = 81,506,526,133,361.28/9,989,946.40
  6. Step 6: Final answer
    x = 8,158,855.20

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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.