Home / 12,969,457.92-17,898,778.56-7,168,114.80

Finding the Fourth Proportional to 12,969,457.92, 17,898,778.56 and 7,168,114.80

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Solution

The fourth proportional to 12,969,457.92, 17,898,778.56 and 7,168,114.80 is: 9,892,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969,457.92 : 17,898,778.56 = 7,168,114.80 : x
  2. Step 2: Convert to fraction form
    12,969,457.92/17,898,778.56 = 7,168,114.80/x
  3. Step 3: Cross multiply
    12,969,457.92x = 17,898,778.56 × 7,168,114.80
  4. Step 4: Simplify right side
    12,969,457.92x = 128,300,499,497,858.67
  5. Step 5: Solve for x
    x = 128,300,499,497,858.67/12,969,457.92
  6. Step 6: Final answer
    x = 9,892,510.57

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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.