Home / 699,517,828.40-1,049,276,742.60-679,362,436.40

Finding the Fourth Proportional to 699,517,828.40, 1,049,276,742.60 and 679,362,436.40

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Solution

The fourth proportional to 699,517,828.40, 1,049,276,742.60 and 679,362,436.40 is: 1,019,043,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,517,828.40 : 1,049,276,742.60 = 679,362,436.40 : x
  2. Step 2: Convert to fraction form
    699,517,828.40/1,049,276,742.60 = 679,362,436.40/x
  3. Step 3: Cross multiply
    699,517,828.40x = 1,049,276,742.60 × 679,362,436.40
  4. Step 4: Simplify right side
    699,517,828.40x = 712,839,204,310,591,616
  5. Step 5: Solve for x
    x = 712,839,204,310,591,616/699,517,828.40
  6. Step 6: Final answer
    x = 1,019,043,654.60

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1.5x scale

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.