Home / 699,536,078.40-1,049,667,272.64-285,316,792.32

Finding the Fourth Proportional to 699,536,078.40, 1,049,667,272.64 and 285,316,792.32

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Solution

The fourth proportional to 699,536,078.40, 1,049,667,272.64 and 285,316,792.32 is: 428,123,306.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,536,078.40 : 1,049,667,272.64 = 285,316,792.32 : x
  2. Step 2: Convert to fraction form
    699,536,078.40/1,049,667,272.64 = 285,316,792.32/x
  3. Step 3: Cross multiply
    699,536,078.40x = 1,049,667,272.64 × 285,316,792.32
  4. Step 4: Simplify right side
    699,536,078.40x = 299,487,699,232,927,680
  5. Step 5: Solve for x
    x = 299,487,699,232,927,680/699,536,078.40
  6. Step 6: Final answer
    x = 428,123,306.97

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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.