Home / 39,810,358,916.97-54,938,293,204.35-21,499,414,830.96

Finding the Fourth Proportional to 39,810,358,916.97, 54,938,293,204.35 and 21,499,414,830.96

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Solution

The fourth proportional to 39,810,358,916.97, 54,938,293,204.35 and 21,499,414,830.96 is: 29,669,191,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810,358,916.97 : 54,938,293,204.35 = 21,499,414,830.96 : x
  2. Step 2: Convert to fraction form
    39,810,358,916.97/54,938,293,204.35 = 21,499,414,830.96/x
  3. Step 3: Cross multiply
    39,810,358,916.97x = 54,938,293,204.35 × 21,499,414,830.96
  4. Step 4: Simplify right side
    39,810,358,916.97x = 1,181,141,155,705,231,245,312
  5. Step 5: Solve for x
    x = 1,181,141,155,705,231,245,312/39,810,358,916.97
  6. Step 6: Final answer
    x = 29,669,191,332.05

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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.