Home / 870,042,821.20-1,305,064,231.80-526,057,464.40

Finding the Fourth Proportional to 870,042,821.20, 1,305,064,231.80 and 526,057,464.40

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Solution

The fourth proportional to 870,042,821.20, 1,305,064,231.80 and 526,057,464.40 is: 789,086,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,042,821.20 : 1,305,064,231.80 = 526,057,464.40 : x
  2. Step 2: Convert to fraction form
    870,042,821.20/1,305,064,231.80 = 526,057,464.40/x
  3. Step 3: Cross multiply
    870,042,821.20x = 1,305,064,231.80 × 526,057,464.40
  4. Step 4: Simplify right side
    870,042,821.20x = 686,538,780,659,841,792
  5. Step 5: Solve for x
    x = 686,538,780,659,841,792/870,042,821.20
  6. Step 6: Final answer
    x = 789,086,196.60

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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.