Home / 93,768,078.72-140,425,352.64-81,070,181.76

Finding the Fourth Proportional to 93,768,078.72, 140,425,352.64 and 81,070,181.76

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Solution

The fourth proportional to 93,768,078.72, 140,425,352.64 and 81,070,181.76 is: 121,409,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,768,078.72 : 140,425,352.64 = 81,070,181.76 : x
  2. Step 2: Convert to fraction form
    93,768,078.72/140,425,352.64 = 81,070,181.76/x
  3. Step 3: Cross multiply
    93,768,078.72x = 140,425,352.64 × 81,070,181.76
  4. Step 4: Simplify right side
    93,768,078.72x = 11,384,308,862,236,896
  5. Step 5: Solve for x
    x = 11,384,308,862,236,896/93,768,078.72
  6. Step 6: Final answer
    x = 121,409,215.35

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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.