Home / 7,932,712.73-11,900,128.47-3,139,281.77

Finding the Fourth Proportional to 7,932,712.73, 11,900,128.47 and 3,139,281.77

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Solution

The fourth proportional to 7,932,712.73, 11,900,128.47 and 3,139,281.77 is: 4,709,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932,712.73 : 11,900,128.47 = 3,139,281.77 : x
  2. Step 2: Convert to fraction form
    7,932,712.73/11,900,128.47 = 3,139,281.77/x
  3. Step 3: Cross multiply
    7,932,712.73x = 11,900,128.47 × 3,139,281.77
  4. Step 4: Simplify right side
    7,932,712.73x = 37,357,856,295,256.05
  5. Step 5: Solve for x
    x = 37,357,856,295,256.05/7,932,712.73
  6. Step 6: Final answer
    x = 4,709,341.88

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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.