Home / 38,797,979,402.79-58,196,724,896.97-20,878,798,694.58

Finding the Fourth Proportional to 38,797,979,402.79, 58,196,724,896.97 and 20,878,798,694.58

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Solution

The fourth proportional to 38,797,979,402.79, 58,196,724,896.97 and 20,878,798,694.58 is: 31,318,066,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,797,979,402.79 : 58,196,724,896.97 = 20,878,798,694.58 : x
  2. Step 2: Convert to fraction form
    38,797,979,402.79/58,196,724,896.97 = 20,878,798,694.58/x
  3. Step 3: Cross multiply
    38,797,979,402.79x = 58,196,724,896.97 × 20,878,798,694.58
  4. Step 4: Simplify right side
    38,797,979,402.79x = 1,215,077,703,807,730,450,432
  5. Step 5: Solve for x
    x = 1,215,077,703,807,730,450,432/38,797,979,402.79
  6. Step 6: Final answer
    x = 31,318,066,623.86

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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.