Home / 7,881,128.11-10,875,710.03-4,620,114.74

Finding the Fourth Proportional to 7,881,128.11, 10,875,710.03 and 4,620,114.74

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Solution

The fourth proportional to 7,881,128.11, 10,875,710.03 and 4,620,114.74 is: 6,375,613.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,128.11 : 10,875,710.03 = 4,620,114.74 : x
  2. Step 2: Convert to fraction form
    7,881,128.11/10,875,710.03 = 4,620,114.74/x
  3. Step 3: Cross multiply
    7,881,128.11x = 10,875,710.03 × 4,620,114.74
  4. Step 4: Simplify right side
    7,881,128.11x = 50,247,028,160,481.68
  5. Step 5: Solve for x
    x = 50,247,028,160,481.68/7,881,128.11
  6. Step 6: Final answer
    x = 6,375,613.67

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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.