Home / 281,817,891.40-422,726,837.10-189,984,886.60

Finding the Fourth Proportional to 281,817,891.40, 422,726,837.10 and 189,984,886.60

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Solution

The fourth proportional to 281,817,891.40, 422,726,837.10 and 189,984,886.60 is: 284,977,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,817,891.40 : 422,726,837.10 = 189,984,886.60 : x
  2. Step 2: Convert to fraction form
    281,817,891.40/422,726,837.10 = 189,984,886.60/x
  3. Step 3: Cross multiply
    281,817,891.40x = 422,726,837.10 × 189,984,886.60
  4. Step 4: Simplify right side
    281,817,891.40x = 80,311,710,209,220,176
  5. Step 5: Solve for x
    x = 80,311,710,209,220,176/281,817,891.40
  6. Step 6: Final answer
    x = 284,977,329.90

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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.