Home / 1,348,326,656.40-2,022,489,984.60-428,295,997.20

Finding the Fourth Proportional to 1,348,326,656.40, 2,022,489,984.60 and 428,295,997.20

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Solution

The fourth proportional to 1,348,326,656.40, 2,022,489,984.60 and 428,295,997.20 is: 642,443,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,326,656.40 : 2,022,489,984.60 = 428,295,997.20 : x
  2. Step 2: Convert to fraction form
    1,348,326,656.40/2,022,489,984.60 = 428,295,997.20/x
  3. Step 3: Cross multiply
    1,348,326,656.40x = 2,022,489,984.60 × 428,295,997.20
  4. Step 4: Simplify right side
    1,348,326,656.40x = 866,224,364,781,269,632
  5. Step 5: Solve for x
    x = 866,224,364,781,269,632/1,348,326,656.40
  6. Step 6: Final answer
    x = 642,443,995.80

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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.