Home / 1,185,949,816.68-1,778,915,768.04-356,899,890

Finding the Fourth Proportional to 1,185,949,816.68, 1,778,915,768.04 and 356,899,890

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Solution

The fourth proportional to 1,185,949,816.68, 1,778,915,768.04 and 356,899,890 is: 535,347,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,949,816.68 : 1,778,915,768.04 = 356,899,890 : x
  2. Step 2: Convert to fraction form
    1,185,949,816.68/1,778,915,768.04 = 356,899,890/x
  3. Step 3: Cross multiply
    1,185,949,816.68x = 1,778,915,768.04 × 356,899,890
  4. Step 4: Simplify right side
    1,185,949,816.68x = 634,894,841,932,741,504
  5. Step 5: Solve for x
    x = 634,894,841,932,741,504/1,185,949,816.68
  6. Step 6: Final answer
    x = 535,347,139.49

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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.