Home / 72,702,638.46-100,329,164.94-41,340,689.76

Finding the Fourth Proportional to 72,702,638.46, 100,329,164.94 and 41,340,689.76

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Solution

The fourth proportional to 72,702,638.46, 100,329,164.94 and 41,340,689.76 is: 57,049,881.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,702,638.46 : 100,329,164.94 = 41,340,689.76 : x
  2. Step 2: Convert to fraction form
    72,702,638.46/100,329,164.94 = 41,340,689.76/x
  3. Step 3: Cross multiply
    72,702,638.46x = 100,329,164.94 × 41,340,689.76
  4. Step 4: Simplify right side
    72,702,638.46x = 4,147,676,881,664,408.50
  5. Step 5: Solve for x
    x = 4,147,676,881,664,408.50/72,702,638.46
  6. Step 6: Final answer
    x = 57,049,881.13

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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.