Home / 790,275,273.12-1,090,579,876.80-442,594,761.12

Finding the Fourth Proportional to 790,275,273.12, 1,090,579,876.80 and 442,594,761.12

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Solution

The fourth proportional to 790,275,273.12, 1,090,579,876.80 and 442,594,761.12 is: 610,780,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,275,273.12 : 1,090,579,876.80 = 442,594,761.12 : x
  2. Step 2: Convert to fraction form
    790,275,273.12/1,090,579,876.80 = 442,594,761.12/x
  3. Step 3: Cross multiply
    790,275,273.12x = 1,090,579,876.80 × 442,594,761.12
  4. Step 4: Simplify right side
    790,275,273.12x = 482,684,940,054,575,040
  5. Step 5: Solve for x
    x = 482,684,940,054,575,040/790,275,273.12
  6. Step 6: Final answer
    x = 610,780,770.29

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1.5x scale

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.