Home / 284,878,891.20-427,318,336.80-281,855,582.40

Finding the Fourth Proportional to 284,878,891.20, 427,318,336.80 and 281,855,582.40

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Solution

The fourth proportional to 284,878,891.20, 427,318,336.80 and 281,855,582.40 is: 422,783,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,878,891.20 : 427,318,336.80 = 281,855,582.40 : x
  2. Step 2: Convert to fraction form
    284,878,891.20/427,318,336.80 = 281,855,582.40/x
  3. Step 3: Cross multiply
    284,878,891.20x = 427,318,336.80 × 281,855,582.40
  4. Step 4: Simplify right side
    284,878,891.20x = 120,442,058,688,963,344
  5. Step 5: Solve for x
    x = 120,442,058,688,963,344/284,878,891.20
  6. Step 6: Final answer
    x = 422,783,373.60

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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.