Home / 804,536,426.40-1,206,804,639.60-287,550,621.60

Finding the Fourth Proportional to 804,536,426.40, 1,206,804,639.60 and 287,550,621.60

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Solution

The fourth proportional to 804,536,426.40, 1,206,804,639.60 and 287,550,621.60 is: 431,325,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,536,426.40 : 1,206,804,639.60 = 287,550,621.60 : x
  2. Step 2: Convert to fraction form
    804,536,426.40/1,206,804,639.60 = 287,550,621.60/x
  3. Step 3: Cross multiply
    804,536,426.40x = 1,206,804,639.60 × 287,550,621.60
  4. Step 4: Simplify right side
    804,536,426.40x = 347,017,424,266,744,000
  5. Step 5: Solve for x
    x = 347,017,424,266,744,000/804,536,426.40
  6. Step 6: Final answer
    x = 431,325,932.40

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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.