Home / 628,744,861.62-938,696,447.40-480,416,135.58

Finding the Fourth Proportional to 628,744,861.62, 938,696,447.40 and 480,416,135.58

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Solution

The fourth proportional to 628,744,861.62, 938,696,447.40 and 480,416,135.58 is: 717,246,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,744,861.62 : 938,696,447.40 = 480,416,135.58 : x
  2. Step 2: Convert to fraction form
    628,744,861.62/938,696,447.40 = 480,416,135.58/x
  3. Step 3: Cross multiply
    628,744,861.62x = 938,696,447.40 × 480,416,135.58
  4. Step 4: Simplify right side
    628,744,861.62x = 450,964,919,742,582,720
  5. Step 5: Solve for x
    x = 450,964,919,742,582,720/628,744,861.62
  6. Step 6: Final answer
    x = 717,246,290.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.