Home / 330,345,240.33-455,747,406.90-189,140,995.77

Finding the Fourth Proportional to 330,345,240.33, 455,747,406.90 and 189,140,995.77

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Solution

The fourth proportional to 330,345,240.33, 455,747,406.90 and 189,140,995.77 is: 260,940,700.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,345,240.33 : 455,747,406.90 = 189,140,995.77 : x
  2. Step 2: Convert to fraction form
    330,345,240.33/455,747,406.90 = 189,140,995.77/x
  3. Step 3: Cross multiply
    330,345,240.33x = 455,747,406.90 × 189,140,995.77
  4. Step 4: Simplify right side
    330,345,240.33x = 86,200,518,360,661,376
  5. Step 5: Solve for x
    x = 86,200,518,360,661,376/330,345,240.33
  6. Step 6: Final answer
    x = 260,940,700.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.