Home / 39,810,358,919.41-54,938,293,207.71-21,499,414,833.41

Finding the Fourth Proportional to 39,810,358,919.41, 54,938,293,207.71 and 21,499,414,833.41

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Solution

The fourth proportional to 39,810,358,919.41, 54,938,293,207.71 and 21,499,414,833.41 is: 29,669,191,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810,358,919.41 : 54,938,293,207.71 = 21,499,414,833.41 : x
  2. Step 2: Convert to fraction form
    39,810,358,919.41/54,938,293,207.71 = 21,499,414,833.41/x
  3. Step 3: Cross multiply
    39,810,358,919.41x = 54,938,293,207.71 × 21,499,414,833.41
  4. Step 4: Simplify right side
    39,810,358,919.41x = 1,181,141,155,911,793,377,280
  5. Step 5: Solve for x
    x = 1,181,141,155,911,793,377,280/39,810,358,919.41
  6. Step 6: Final answer
    x = 29,669,191,335.43

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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.