Home / 68,157,237,788.32-102,246,842,451.12-20,993,689,742.80

Finding the Fourth Proportional to 68,157,237,788.32, 102,246,842,451.12 and 20,993,689,742.80

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Solution

The fourth proportional to 68,157,237,788.32, 102,246,842,451.12 and 20,993,689,742.80 is: 31,493,918,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,157,237,788.32 : 102,246,842,451.12 = 20,993,689,742.80 : x
  2. Step 2: Convert to fraction form
    68,157,237,788.32/102,246,842,451.12 = 20,993,689,742.80/x
  3. Step 3: Cross multiply
    68,157,237,788.32x = 102,246,842,451.12 × 20,993,689,742.80
  4. Step 4: Simplify right side
    68,157,237,788.32x = 2,146,538,487,599,765,389,312
  5. Step 5: Solve for x
    x = 2,146,538,487,599,765,389,312/68,157,237,788.32
  6. Step 6: Final answer
    x = 31,493,918,434.11

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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.