Home / 651,268,102.40-976,902,153.60-646,733,139.20

Finding the Fourth Proportional to 651,268,102.40, 976,902,153.60 and 646,733,139.20

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Solution

The fourth proportional to 651,268,102.40, 976,902,153.60 and 646,733,139.20 is: 970,099,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,268,102.40 : 976,902,153.60 = 646,733,139.20 : x
  2. Step 2: Convert to fraction form
    651,268,102.40/976,902,153.60 = 646,733,139.20/x
  3. Step 3: Cross multiply
    651,268,102.40x = 976,902,153.60 × 646,733,139.20
  4. Step 4: Simplify right side
    651,268,102.40x = 631,794,996,488,968,704
  5. Step 5: Solve for x
    x = 631,794,996,488,968,704/651,268,102.40
  6. Step 6: Final answer
    x = 970,099,708.80

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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.