Home / 133,075,041.20-199,612,561.80-72,608,865.20

Finding the Fourth Proportional to 133,075,041.20, 199,612,561.80 and 72,608,865.20

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Solution

The fourth proportional to 133,075,041.20, 199,612,561.80 and 72,608,865.20 is: 108,913,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,075,041.20 : 199,612,561.80 = 72,608,865.20 : x
  2. Step 2: Convert to fraction form
    133,075,041.20/199,612,561.80 = 72,608,865.20/x
  3. Step 3: Cross multiply
    133,075,041.20x = 199,612,561.80 × 72,608,865.20
  4. Step 4: Simplify right side
    133,075,041.20x = 14,493,641,591,962,870
  5. Step 5: Solve for x
    x = 14,493,641,591,962,870/133,075,041.20
  6. Step 6: Final answer
    x = 108,913,297.80

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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.