Home / 15,004,491.67-20,706,298.01-8,128,973.76

Finding the Fourth Proportional to 15,004,491.67, 20,706,298.01 and 8,128,973.76

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Solution

The fourth proportional to 15,004,491.67, 20,706,298.01 and 8,128,973.76 is: 11,218,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,491.67 : 20,706,298.01 = 8,128,973.76 : x
  2. Step 2: Convert to fraction form
    15,004,491.67/20,706,298.01 = 8,128,973.76/x
  3. Step 3: Cross multiply
    15,004,491.67x = 20,706,298.01 × 8,128,973.76
  4. Step 4: Simplify right side
    15,004,491.67x = 168,320,953,190,030.22
  5. Step 5: Solve for x
    x = 168,320,953,190,030.22/15,004,491.67
  6. Step 6: Final answer
    x = 11,218,037.70

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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.