Home / 69,678,636.72-96,158,991.80-38,319,069.96

Finding the Fourth Proportional to 69,678,636.72, 96,158,991.80 and 38,319,069.96

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Solution

The fourth proportional to 69,678,636.72, 96,158,991.80 and 38,319,069.96 is: 52,881,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,678,636.72 : 96,158,991.80 = 38,319,069.96 : x
  2. Step 2: Convert to fraction form
    69,678,636.72/96,158,991.80 = 38,319,069.96/x
  3. Step 3: Cross multiply
    69,678,636.72x = 96,158,991.80 × 38,319,069.96
  4. Step 4: Simplify right side
    69,678,636.72x = 3,684,723,134,067,266.50
  5. Step 5: Solve for x
    x = 3,684,723,134,067,266.50/69,678,636.72
  6. Step 6: Final answer
    x = 52,881,676.62

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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.