Home / 69,689,137.68-104,526,895.08-21,167,412.84

Finding the Fourth Proportional to 69,689,137.68, 104,526,895.08 and 21,167,412.84

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Solution

The fourth proportional to 69,689,137.68, 104,526,895.08 and 21,167,412.84 is: 31,749,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689,137.68 : 104,526,895.08 = 21,167,412.84 : x
  2. Step 2: Convert to fraction form
    69,689,137.68/104,526,895.08 = 21,167,412.84/x
  3. Step 3: Cross multiply
    69,689,137.68x = 104,526,895.08 × 21,167,412.84
  4. Step 4: Simplify right side
    69,689,137.68x = 2,212,563,941,041,724.75
  5. Step 5: Solve for x
    x = 2,212,563,941,041,724.75/69,689,137.68
  6. Step 6: Final answer
    x = 31,749,050.35

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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.