Home / 7,128,001.45-10,692,002.18-4,606,503.85

Finding the Fourth Proportional to 7,128,001.45, 10,692,002.18 and 4,606,503.85

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Solution

The fourth proportional to 7,128,001.45, 10,692,002.18 and 4,606,503.85 is: 6,909,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,001.45 : 10,692,002.18 = 4,606,503.85 : x
  2. Step 2: Convert to fraction form
    7,128,001.45/10,692,002.18 = 4,606,503.85/x
  3. Step 3: Cross multiply
    7,128,001.45x = 10,692,002.18 × 4,606,503.85
  4. Step 4: Simplify right side
    7,128,001.45x = 49,252,749,206,378.39
  5. Step 5: Solve for x
    x = 49,252,749,206,378.39/7,128,001.45
  6. Step 6: Final answer
    x = 6,909,755.78

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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.