Home / 12,969,461.92-17,898,784.08-7,168,118.80

Finding the Fourth Proportional to 12,969,461.92, 17,898,784.08 and 7,168,118.80

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Solution

The fourth proportional to 12,969,461.92, 17,898,784.08 and 7,168,118.80 is: 9,892,516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969,461.92 : 17,898,784.08 = 7,168,118.80 : x
  2. Step 2: Convert to fraction form
    12,969,461.92/17,898,784.08 = 7,168,118.80/x
  3. Step 3: Cross multiply
    12,969,461.92x = 17,898,784.08 × 7,168,118.80
  4. Step 4: Simplify right side
    12,969,461.92x = 128,300,610,660,988.69
  5. Step 5: Solve for x
    x = 128,300,610,660,988.69/12,969,461.92
  6. Step 6: Final answer
    x = 9,892,516.09

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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.