Home / 281,809,766.40-422,316,518.40-208,454,092.80

Finding the Fourth Proportional to 281,809,766.40, 422,316,518.40 and 208,454,092.80

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Solution

The fourth proportional to 281,809,766.40, 422,316,518.40 and 208,454,092.80 is: 312,386,642.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,809,766.40 : 422,316,518.40 = 208,454,092.80 : x
  2. Step 2: Convert to fraction form
    281,809,766.40/422,316,518.40 = 208,454,092.80/x
  3. Step 3: Cross multiply
    281,809,766.40x = 422,316,518.40 × 208,454,092.80
  4. Step 4: Simplify right side
    281,809,766.40x = 88,033,606,717,526,512
  5. Step 5: Solve for x
    x = 88,033,606,717,526,512/281,809,766.40
  6. Step 6: Final answer
    x = 312,386,642.39

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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.