Home / 70,139,769.53-96,790,022.28-38,775,822.30

Finding the Fourth Proportional to 70,139,769.53, 96,790,022.28 and 38,775,822.30

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Solution

The fourth proportional to 70,139,769.53, 96,790,022.28 and 38,775,822.30 is: 53,509,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,139,769.53 : 96,790,022.28 = 38,775,822.30 : x
  2. Step 2: Convert to fraction form
    70,139,769.53/96,790,022.28 = 38,775,822.30/x
  3. Step 3: Cross multiply
    70,139,769.53x = 96,790,022.28 × 38,775,822.30
  4. Step 4: Simplify right side
    70,139,769.53x = 3,753,112,704,342,320.50
  5. Step 5: Solve for x
    x = 3,753,112,704,342,320.50/70,139,769.53
  6. Step 6: Final answer
    x = 53,509,053.85

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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.