Home / 696,111,409.68-960,640,179.48-378,574,675.08

Finding the Fourth Proportional to 696,111,409.68, 960,640,179.48 and 378,574,675.08

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Solution

The fourth proportional to 696,111,409.68, 960,640,179.48 and 378,574,675.08 is: 522,436,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,111,409.68 : 960,640,179.48 = 378,574,675.08 : x
  2. Step 2: Convert to fraction form
    696,111,409.68/960,640,179.48 = 378,574,675.08/x
  3. Step 3: Cross multiply
    696,111,409.68x = 960,640,179.48 × 378,574,675.08
  4. Step 4: Simplify right side
    696,111,409.68x = 363,674,043,815,433,856
  5. Step 5: Solve for x
    x = 363,674,043,815,433,856/696,111,409.68
  6. Step 6: Final answer
    x = 522,436,550.76

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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.