Home / 100,205,977.20-150,308,965.80-61,942,225.20

Finding the Fourth Proportional to 100,205,977.20, 150,308,965.80 and 61,942,225.20

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Solution

The fourth proportional to 100,205,977.20, 150,308,965.80 and 61,942,225.20 is: 92,913,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,205,977.20 : 150,308,965.80 = 61,942,225.20 : x
  2. Step 2: Convert to fraction form
    100,205,977.20/150,308,965.80 = 61,942,225.20/x
  3. Step 3: Cross multiply
    100,205,977.20x = 150,308,965.80 × 61,942,225.20
  4. Step 4: Simplify right side
    100,205,977.20x = 9,310,471,809,162,700
  5. Step 5: Solve for x
    x = 9,310,471,809,162,700/100,205,977.20
  6. Step 6: Final answer
    x = 92,913,337.80

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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.