Home / 69,679,952.40-104,513,174.70-21,158,232.72

Finding the Fourth Proportional to 69,679,952.40, 104,513,174.70 and 21,158,232.72

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Solution

The fourth proportional to 69,679,952.40, 104,513,174.70 and 21,158,232.72 is: 31,735,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,679,952.40 : 104,513,174.70 = 21,158,232.72 : x
  2. Step 2: Convert to fraction form
    69,679,952.40/104,513,174.70 = 21,158,232.72/x
  3. Step 3: Cross multiply
    69,679,952.40x = 104,513,174.70 × 21,158,232.72
  4. Step 4: Simplify right side
    69,679,952.40x = 2,211,314,072,608,616
  5. Step 5: Solve for x
    x = 2,211,314,072,608,616/69,679,952.40
  6. Step 6: Final answer
    x = 31,735,298.27

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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.