Home / 695,669,213.50-960,029,941.40-378,130,206.61

Finding the Fourth Proportional to 695,669,213.50, 960,029,941.40 and 378,130,206.61

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Solution

The fourth proportional to 695,669,213.50, 960,029,941.40 and 378,130,206.61 is: 521,823,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,669,213.50 : 960,029,941.40 = 378,130,206.61 : x
  2. Step 2: Convert to fraction form
    695,669,213.50/960,029,941.40 = 378,130,206.61/x
  3. Step 3: Cross multiply
    695,669,213.50x = 960,029,941.40 × 378,130,206.61
  4. Step 4: Simplify right side
    695,669,213.50x = 363,016,320,093,368,192
  5. Step 5: Solve for x
    x = 363,016,320,093,368,192/695,669,213.50
  6. Step 6: Final answer
    x = 521,823,178.39

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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.