Home / 160,519,998.09-221,518,731.20-87,181,140.09

Finding the Fourth Proportional to 160,519,998.09, 221,518,731.20 and 87,181,140.09

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Solution

The fourth proportional to 160,519,998.09, 221,518,731.20 and 87,181,140.09 is: 120,310,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,519,998.09 : 221,518,731.20 = 87,181,140.09 : x
  2. Step 2: Convert to fraction form
    160,519,998.09/221,518,731.20 = 87,181,140.09/x
  3. Step 3: Cross multiply
    160,519,998.09x = 221,518,731.20 × 87,181,140.09
  4. Step 4: Simplify right side
    160,519,998.09x = 19,312,255,536,870,348
  5. Step 5: Solve for x
    x = 19,312,255,536,870,348/160,519,998.09
  6. Step 6: Final answer
    x = 120,310,589.13

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1.5x scale

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.