Home / 69,681,910.79-104,516,098.60-21,160,184.96

Finding the Fourth Proportional to 69,681,910.79, 104,516,098.60 and 21,160,184.96

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Solution

The fourth proportional to 69,681,910.79, 104,516,098.60 and 21,160,184.96 is: 31,738,222.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,681,910.79 : 104,516,098.60 = 21,160,184.96 : x
  2. Step 2: Convert to fraction form
    69,681,910.79/104,516,098.60 = 21,160,184.96/x
  3. Step 3: Cross multiply
    69,681,910.79x = 104,516,098.60 × 21,160,184.96
  4. Step 4: Simplify right side
    69,681,910.79x = 2,211,579,977,673,597
  5. Step 5: Solve for x
    x = 2,211,579,977,673,597/69,681,910.79
  6. Step 6: Final answer
    x = 31,738,222.34

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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.