Home / 284,879,639.20-427,319,458.80-281,856,330.40

Finding the Fourth Proportional to 284,879,639.20, 427,319,458.80 and 281,856,330.40

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Solution

The fourth proportional to 284,879,639.20, 427,319,458.80 and 281,856,330.40 is: 422,784,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,879,639.20 : 427,319,458.80 = 281,856,330.40 : x
  2. Step 2: Convert to fraction form
    284,879,639.20/427,319,458.80 = 281,856,330.40/x
  3. Step 3: Cross multiply
    284,879,639.20x = 427,319,458.80 × 281,856,330.40
  4. Step 4: Simplify right side
    284,879,639.20x = 120,442,694,565,881,984
  5. Step 5: Solve for x
    x = 120,442,694,565,881,984/284,879,639.20
  6. Step 6: Final answer
    x = 422,784,495.60

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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.