Home / 870,042,821.70-1,305,064,232.55-526,057,464.90

Finding the Fourth Proportional to 870,042,821.70, 1,305,064,232.55 and 526,057,464.90

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Solution

The fourth proportional to 870,042,821.70, 1,305,064,232.55 and 526,057,464.90 is: 789,086,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,042,821.70 : 1,305,064,232.55 = 526,057,464.90 : x
  2. Step 2: Convert to fraction form
    870,042,821.70/1,305,064,232.55 = 526,057,464.90/x
  3. Step 3: Cross multiply
    870,042,821.70x = 1,305,064,232.55 × 526,057,464.90
  4. Step 4: Simplify right side
    870,042,821.70x = 686,538,781,706,916,992
  5. Step 5: Solve for x
    x = 686,538,781,706,916,992/870,042,821.70
  6. Step 6: Final answer
    x = 789,086,197.35

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Double scale
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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.