Home / 378,611,012,151.92-567,951,430,612-123,641,731,986.40

Finding the Fourth Proportional to 378,611,012,151.92, 567,951,430,612 and 123,641,731,986.40

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Solution

The fourth proportional to 378,611,012,151.92, 567,951,430,612 and 123,641,731,986.40 is: 185,473,999,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,611,012,151.92 : 567,951,430,612 = 123,641,731,986.40 : x
  2. Step 2: Convert to fraction form
    378,611,012,151.92/567,951,430,612 = 123,641,731,986.40/x
  3. Step 3: Cross multiply
    378,611,012,151.92x = 567,951,430,612 × 123,641,731,986.40
  4. Step 4: Simplify right side
    378,611,012,151.92x = 70,222,498,565,021,358,882,816
  5. Step 5: Solve for x
    x = 70,222,498,565,021,358,882,816/378,611,012,151.92
  6. Step 6: Final answer
    x = 185,473,999,200.12

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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.