Home / 68,788,778,135.40-103,135,193,914.68-30,479,164,418.16

Finding the Fourth Proportional to 68,788,778,135.40, 103,135,193,914.68 and 30,479,164,418.16

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Solution

The fourth proportional to 68,788,778,135.40, 103,135,193,914.68 and 30,479,164,418.16 is: 45,697,490,460.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,788,778,135.40 : 103,135,193,914.68 = 30,479,164,418.16 : x
  2. Step 2: Convert to fraction form
    68,788,778,135.40/103,135,193,914.68 = 30,479,164,418.16/x
  3. Step 3: Cross multiply
    68,788,778,135.40x = 103,135,193,914.68 × 30,479,164,418.16
  4. Step 4: Simplify right side
    68,788,778,135.40x = 3,143,474,532,624,346,120,192
  5. Step 5: Solve for x
    x = 3,143,474,532,624,346,120,192/68,788,778,135.40
  6. Step 6: Final answer
    x = 45,697,490,460.39

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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.