Home / 287,511,241.14-431,094,241.77-131,870,083.77

Finding the Fourth Proportional to 287,511,241.14, 431,094,241.77 and 131,870,083.77

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Solution

The fourth proportional to 287,511,241.14, 431,094,241.77 and 131,870,083.77 is: 197,725,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,511,241.14 : 431,094,241.77 = 131,870,083.77 : x
  2. Step 2: Convert to fraction form
    287,511,241.14/431,094,241.77 = 131,870,083.77/x
  3. Step 3: Cross multiply
    287,511,241.14x = 431,094,241.77 × 131,870,083.77
  4. Step 4: Simplify right side
    287,511,241.14x = 56,848,433,774,974,528
  5. Step 5: Solve for x
    x = 56,848,433,774,974,528/287,511,241.14
  6. Step 6: Final answer
    x = 197,725,951.69

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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.