Home / 31,641,446,877.57-43,645,334,976.40-18,771,975,464.72

Finding the Fourth Proportional to 31,641,446,877.57, 43,645,334,976.40 and 18,771,975,464.72

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Solution

The fourth proportional to 31,641,446,877.57, 43,645,334,976.40 and 18,771,975,464.72 is: 25,893,542,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,641,446,877.57 : 43,645,334,976.40 = 18,771,975,464.72 : x
  2. Step 2: Convert to fraction form
    31,641,446,877.57/43,645,334,976.40 = 18,771,975,464.72/x
  3. Step 3: Cross multiply
    31,641,446,877.57x = 43,645,334,976.40 × 18,771,975,464.72
  4. Step 4: Simplify right side
    31,641,446,877.57x = 819,309,157,326,323,318,784
  5. Step 5: Solve for x
    x = 819,309,157,326,323,318,784/31,641,446,877.57
  6. Step 6: Final answer
    x = 25,893,542,747.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.