Home / 99,809,729.40-149,688,022.05-30,722,399.40

Finding the Fourth Proportional to 99,809,729.40, 149,688,022.05 and 30,722,399.40

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Solution

The fourth proportional to 99,809,729.40, 149,688,022.05 and 30,722,399.40 is: 46,075,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,809,729.40 : 149,688,022.05 = 30,722,399.40 : x
  2. Step 2: Convert to fraction form
    99,809,729.40/149,688,022.05 = 30,722,399.40/x
  3. Step 3: Cross multiply
    99,809,729.40x = 149,688,022.05 × 30,722,399.40
  4. Step 4: Simplify right side
    99,809,729.40x = 4,598,775,198,816,107
  5. Step 5: Solve for x
    x = 4,598,775,198,816,107/99,809,729.40
  6. Step 6: Final answer
    x = 46,075,419.97

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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.