Home / 880,641,473.68-1,320,962,443.80-258,856,731.28

Finding the Fourth Proportional to 880,641,473.68, 1,320,962,443.80 and 258,856,731.28

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Solution

The fourth proportional to 880,641,473.68, 1,320,962,443.80 and 258,856,731.28 is: 388,285,165.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,641,473.68 : 1,320,962,443.80 = 258,856,731.28 : x
  2. Step 2: Convert to fraction form
    880,641,473.68/1,320,962,443.80 = 258,856,731.28/x
  3. Step 3: Cross multiply
    880,641,473.68x = 1,320,962,443.80 × 258,856,731.28
  4. Step 4: Simplify right side
    880,641,473.68x = 341,940,020,345,708,672
  5. Step 5: Solve for x
    x = 341,940,020,345,708,672/880,641,473.68
  6. Step 6: Final answer
    x = 388,285,165.49

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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.