Home / 211,545,507.30-317,310,854.31-87,043,640.82

Finding the Fourth Proportional to 211,545,507.30, 317,310,854.31 and 87,043,640.82

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Solution

The fourth proportional to 211,545,507.30, 317,310,854.31 and 87,043,640.82 is: 130,562,413.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,545,507.30 : 317,310,854.31 = 87,043,640.82 : x
  2. Step 2: Convert to fraction form
    211,545,507.30/317,310,854.31 = 87,043,640.82/x
  3. Step 3: Cross multiply
    211,545,507.30x = 317,310,854.31 × 87,043,640.82
  4. Step 4: Simplify right side
    211,545,507.30x = 27,619,892,030,846,988
  5. Step 5: Solve for x
    x = 27,619,892,030,846,988/211,545,507.30
  6. Step 6: Final answer
    x = 130,562,413.65

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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.