Home / 99,640,006.05-149,460,009.08-72,430,226.85

Finding the Fourth Proportional to 99,640,006.05, 149,460,009.08 and 72,430,226.85

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Solution

The fourth proportional to 99,640,006.05, 149,460,009.08 and 72,430,226.85 is: 108,645,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,006.05 : 149,460,009.08 = 72,430,226.85 : x
  2. Step 2: Convert to fraction form
    99,640,006.05/149,460,009.08 = 72,430,226.85/x
  3. Step 3: Cross multiply
    99,640,006.05x = 149,460,009.08 × 72,430,226.85
  4. Step 4: Simplify right side
    99,640,006.05x = 10,825,422,362,305,306
  5. Step 5: Solve for x
    x = 10,825,422,362,305,306/99,640,006.05
  6. Step 6: Final answer
    x = 108,645,340.28

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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.