Home / 172,435,784.80-258,689,619.60-57,456,047.20

Finding the Fourth Proportional to 172,435,784.80, 258,689,619.60 and 57,456,047.20

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Solution

The fourth proportional to 172,435,784.80, 258,689,619.60 and 57,456,047.20 is: 86,196,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,435,784.80 : 258,689,619.60 = 57,456,047.20 : x
  2. Step 2: Convert to fraction form
    172,435,784.80/258,689,619.60 = 57,456,047.20/x
  3. Step 3: Cross multiply
    172,435,784.80x = 258,689,619.60 × 57,456,047.20
  4. Step 4: Simplify right side
    172,435,784.80x = 14,863,282,993,887,646
  5. Step 5: Solve for x
    x = 14,863,282,993,887,646/172,435,784.80
  6. Step 6: Final answer
    x = 86,196,046.90

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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.