Home / 724,367,975.40-1,086,693,680.70-309,843,995.40

Finding the Fourth Proportional to 724,367,975.40, 1,086,693,680.70 and 309,843,995.40

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Solution

The fourth proportional to 724,367,975.40, 1,086,693,680.70 and 309,843,995.40 is: 464,826,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,367,975.40 : 1,086,693,680.70 = 309,843,995.40 : x
  2. Step 2: Convert to fraction form
    724,367,975.40/1,086,693,680.70 = 309,843,995.40/x
  3. Step 3: Cross multiply
    724,367,975.40x = 1,086,693,680.70 × 309,843,995.40
  4. Step 4: Simplify right side
    724,367,975.40x = 336,705,511,804,019,840
  5. Step 5: Solve for x
    x = 336,705,511,804,019,840/724,367,975.40
  6. Step 6: Final answer
    x = 464,826,611.94

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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.