Home / 140,870,435.40-211,410,629.10-72,678,025.80

Finding the Fourth Proportional to 140,870,435.40, 211,410,629.10 and 72,678,025.80

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Solution

The fourth proportional to 140,870,435.40, 211,410,629.10 and 72,678,025.80 is: 109,071,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,870,435.40 : 211,410,629.10 = 72,678,025.80 : x
  2. Step 2: Convert to fraction form
    140,870,435.40/211,410,629.10 = 72,678,025.80/x
  3. Step 3: Cross multiply
    140,870,435.40x = 211,410,629.10 × 72,678,025.80
  4. Step 4: Simplify right side
    140,870,435.40x = 15,364,907,156,124,030
  5. Step 5: Solve for x
    x = 15,364,907,156,124,030/140,870,435.40
  6. Step 6: Final answer
    x = 109,071,198.03

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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.