Home / 160,520,865.54-221,519,928.17-87,182,007.54

Finding the Fourth Proportional to 160,520,865.54, 221,519,928.17 and 87,182,007.54

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Solution

The fourth proportional to 160,520,865.54, 221,519,928.17 and 87,182,007.54 is: 120,311,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,520,865.54 : 221,519,928.17 = 87,182,007.54 : x
  2. Step 2: Convert to fraction form
    160,520,865.54/221,519,928.17 = 87,182,007.54/x
  3. Step 3: Cross multiply
    160,520,865.54x = 221,519,928.17 × 87,182,007.54
  4. Step 4: Simplify right side
    160,520,865.54x = 19,312,552,047,977,200
  5. Step 5: Solve for x
    x = 19,312,552,047,977,200/160,520,865.54
  6. Step 6: Final answer
    x = 120,311,786.15

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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.