Home / 147,309,140.08-203,298,716.10-81,242,560

Finding the Fourth Proportional to 147,309,140.08, 203,298,716.10 and 81,242,560

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Solution

The fourth proportional to 147,309,140.08, 203,298,716.10 and 81,242,560 is: 112,121,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,309,140.08 : 203,298,716.10 = 81,242,560 : x
  2. Step 2: Convert to fraction form
    147,309,140.08/203,298,716.10 = 81,242,560/x
  3. Step 3: Cross multiply
    147,309,140.08x = 203,298,716.10 × 81,242,560
  4. Step 4: Simplify right side
    147,309,140.08x = 16,516,508,140,677,216
  5. Step 5: Solve for x
    x = 16,516,508,140,677,216/147,309,140.08
  6. Step 6: Final answer
    x = 112,121,407.62

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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.