Home / 876,096,010.80-1,314,144,016.20-531,438,807.60

Finding the Fourth Proportional to 876,096,010.80, 1,314,144,016.20 and 531,438,807.60

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Solution

The fourth proportional to 876,096,010.80, 1,314,144,016.20 and 531,438,807.60 is: 797,158,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,096,010.80 : 1,314,144,016.20 = 531,438,807.60 : x
  2. Step 2: Convert to fraction form
    876,096,010.80/1,314,144,016.20 = 531,438,807.60/x
  3. Step 3: Cross multiply
    876,096,010.80x = 1,314,144,016.20 × 531,438,807.60
  4. Step 4: Simplify right side
    876,096,010.80x = 698,387,128,984,003,200
  5. Step 5: Solve for x
    x = 698,387,128,984,003,200/876,096,010.80
  6. Step 6: Final answer
    x = 797,158,211.40

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Double scale
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Similar ratio
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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.