Home / 15,028,985.52-20,740,007.34-8,153,465.76

Finding the Fourth Proportional to 15,028,985.52, 20,740,007.34 and 8,153,465.76

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Solution

The fourth proportional to 15,028,985.52, 20,740,007.34 and 8,153,465.76 is: 11,251,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,985.52 : 20,740,007.34 = 8,153,465.76 : x
  2. Step 2: Convert to fraction form
    15,028,985.52/20,740,007.34 = 8,153,465.76/x
  3. Step 3: Cross multiply
    15,028,985.52x = 20,740,007.34 × 8,153,465.76
  4. Step 4: Simplify right side
    15,028,985.52x = 169,102,939,708,838.69
  5. Step 5: Solve for x
    x = 169,102,939,708,838.69/15,028,985.52
  6. Step 6: Final answer
    x = 11,251,786.72

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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.