Home / 12,112,966.15-16,721,491.14-7,467,581.32

Finding the Fourth Proportional to 12,112,966.15, 16,721,491.14 and 7,467,581.32

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Solution

The fourth proportional to 12,112,966.15, 16,721,491.14 and 7,467,581.32 is: 10,308,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,966.15 : 16,721,491.14 = 7,467,581.32 : x
  2. Step 2: Convert to fraction form
    12,112,966.15/16,721,491.14 = 7,467,581.32/x
  3. Step 3: Cross multiply
    12,112,966.15x = 16,721,491.14 × 7,467,581.32
  4. Step 4: Simplify right side
    12,112,966.15x = 124,869,094,837,805.78
  5. Step 5: Solve for x
    x = 124,869,094,837,805.78/12,112,966.15
  6. Step 6: Final answer
    x = 10,308,713.27

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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.