Home / 846,580,928.32-1,269,377,152.32-328,405,876.64

Finding the Fourth Proportional to 846,580,928.32, 1,269,377,152.32 and 328,405,876.64

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Solution

The fourth proportional to 846,580,928.32, 1,269,377,152.32 and 328,405,876.64 is: 492,417,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,580,928.32 : 1,269,377,152.32 = 328,405,876.64 : x
  2. Step 2: Convert to fraction form
    846,580,928.32/1,269,377,152.32 = 328,405,876.64/x
  3. Step 3: Cross multiply
    846,580,928.32x = 1,269,377,152.32 × 328,405,876.64
  4. Step 4: Simplify right side
    846,580,928.32x = 416,870,916,494,436,352
  5. Step 5: Solve for x
    x = 416,870,916,494,436,352/846,580,928.32
  6. Step 6: Final answer
    x = 492,417,089.20

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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.