Home / 45,532,638.82-68,298,969.86-12,748,037.70

Finding the Fourth Proportional to 45,532,638.82, 68,298,969.86 and 12,748,037.70

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Solution

The fourth proportional to 45,532,638.82, 68,298,969.86 and 12,748,037.70 is: 19,122,059.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,532,638.82 : 68,298,969.86 = 12,748,037.70 : x
  2. Step 2: Convert to fraction form
    45,532,638.82/68,298,969.86 = 12,748,037.70/x
  3. Step 3: Cross multiply
    45,532,638.82x = 68,298,969.86 × 12,748,037.70
  4. Step 4: Simplify right side
    45,532,638.82x = 870,677,842,646,443.62
  5. Step 5: Solve for x
    x = 870,677,842,646,443.62/45,532,638.82
  6. Step 6: Final answer
    x = 19,122,059.81

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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.