Home / 526,536,007.20-789,804,010.80-396,439,250.40

Finding the Fourth Proportional to 526,536,007.20, 789,804,010.80 and 396,439,250.40

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Solution

The fourth proportional to 526,536,007.20, 789,804,010.80 and 396,439,250.40 is: 594,658,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,536,007.20 : 789,804,010.80 = 396,439,250.40 : x
  2. Step 2: Convert to fraction form
    526,536,007.20/789,804,010.80 = 396,439,250.40/x
  3. Step 3: Cross multiply
    526,536,007.20x = 789,804,010.80 × 396,439,250.40
  4. Step 4: Simplify right side
    526,536,007.20x = 313,109,310,004,465,472
  5. Step 5: Solve for x
    x = 313,109,310,004,465,472/526,536,007.20
  6. Step 6: Final answer
    x = 594,658,875.60

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Similar ratio
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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.