Home / 69,681,909.79-104,516,097.10-21,160,183.96

Finding the Fourth Proportional to 69,681,909.79, 104,516,097.10 and 21,160,183.96

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Solution

The fourth proportional to 69,681,909.79, 104,516,097.10 and 21,160,183.96 is: 31,738,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,681,909.79 : 104,516,097.10 = 21,160,183.96 : x
  2. Step 2: Convert to fraction form
    69,681,909.79/104,516,097.10 = 21,160,183.96/x
  3. Step 3: Cross multiply
    69,681,909.79x = 104,516,097.10 × 21,160,183.96
  4. Step 4: Simplify right side
    69,681,909.79x = 2,211,579,841,025,984.50
  5. Step 5: Solve for x
    x = 2,211,579,841,025,984.50/69,681,909.79
  6. Step 6: Final answer
    x = 31,738,220.83

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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.