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Finding the Fourth Proportional to 699,017,651.60, 964,664,810.44 and 381,498,262.94

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Solution

The fourth proportional to 699,017,651.60, 964,664,810.44 and 381,498,262.94 is: 526,478,764.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,017,651.60 : 964,664,810.44 = 381,498,262.94 : x
  2. Step 2: Convert to fraction form
    699,017,651.60/964,664,810.44 = 381,498,262.94/x
  3. Step 3: Cross multiply
    699,017,651.60x = 964,664,810.44 × 381,498,262.94
  4. Step 4: Simplify right side
    699,017,651.60x = 368,017,949,502,204,416
  5. Step 5: Solve for x
    x = 368,017,949,502,204,416/699,017,651.60
  6. Step 6: Final answer
    x = 526,478,764.39

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.