Home / 20,785,775.37-31,176,659.04-6,404,981.91

Finding the Fourth Proportional to 20,785,775.37, 31,176,659.04 and 6,404,981.91

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Solution

The fourth proportional to 20,785,775.37, 31,176,659.04 and 6,404,981.91 is: 9,606,855.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,775.37 : 31,176,659.04 = 6,404,981.91 : x
  2. Step 2: Convert to fraction form
    20,785,775.37/31,176,659.04 = 6,404,981.91/x
  3. Step 3: Cross multiply
    20,785,775.37x = 31,176,659.04 × 6,404,981.91
  4. Step 4: Simplify right side
    20,785,775.37x = 199,685,937,165,437.97
  5. Step 5: Solve for x
    x = 199,685,937,165,437.97/20,785,775.37
  6. Step 6: Final answer
    x = 9,606,855.34

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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.