Home / 12,964,218.36-17,890,140.78-7,162,875.24

Finding the Fourth Proportional to 12,964,218.36, 17,890,140.78 and 7,162,875.24

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Solution

The fourth proportional to 12,964,218.36, 17,890,140.78 and 7,162,875.24 is: 9,884,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964,218.36 : 17,890,140.78 = 7,162,875.24 : x
  2. Step 2: Convert to fraction form
    12,964,218.36/17,890,140.78 = 7,162,875.24/x
  3. Step 3: Cross multiply
    12,964,218.36x = 17,890,140.78 × 7,162,875.24
  4. Step 4: Simplify right side
    12,964,218.36x = 128,144,846,433,176.30
  5. Step 5: Solve for x
    x = 128,144,846,433,176.30/12,964,218.36
  6. Step 6: Final answer
    x = 9,884,502.32

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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.