Home / 387,240,185.90-534,375,907.40-211,024,425.50

Finding the Fourth Proportional to 387,240,185.90, 534,375,907.40 and 211,024,425.50

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Solution

The fourth proportional to 387,240,185.90, 534,375,907.40 and 211,024,425.50 is: 291,205,233.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,240,185.90 : 534,375,907.40 = 211,024,425.50 : x
  2. Step 2: Convert to fraction form
    387,240,185.90/534,375,907.40 = 211,024,425.50/x
  3. Step 3: Cross multiply
    387,240,185.90x = 534,375,907.40 × 211,024,425.50
  4. Step 4: Simplify right side
    387,240,185.90x = 112,766,368,860,126,192
  5. Step 5: Solve for x
    x = 112,766,368,860,126,192/387,240,185.90
  6. Step 6: Final answer
    x = 291,205,233.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.