Home / 1,260,781,305.30-1,891,171,957.95-442,893,606.30

Finding the Fourth Proportional to 1,260,781,305.30, 1,891,171,957.95 and 442,893,606.30

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Solution

The fourth proportional to 1,260,781,305.30, 1,891,171,957.95 and 442,893,606.30 is: 664,340,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,781,305.30 : 1,891,171,957.95 = 442,893,606.30 : x
  2. Step 2: Convert to fraction form
    1,260,781,305.30/1,891,171,957.95 = 442,893,606.30/x
  3. Step 3: Cross multiply
    1,260,781,305.30x = 1,891,171,957.95 × 442,893,606.30
  4. Step 4: Simplify right side
    1,260,781,305.30x = 837,587,968,589,907,456
  5. Step 5: Solve for x
    x = 837,587,968,589,907,456/1,260,781,305.30
  6. Step 6: Final answer
    x = 664,340,409.45

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Double scale
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1.5x scale

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.