Home / 13,422,271.52-20,133,278.63-7,953,429.68

Finding the Fourth Proportional to 13,422,271.52, 20,133,278.63 and 7,953,429.68

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Solution

The fourth proportional to 13,422,271.52, 20,133,278.63 and 7,953,429.68 is: 11,930,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422,271.52 : 20,133,278.63 = 7,953,429.68 : x
  2. Step 2: Convert to fraction form
    13,422,271.52/20,133,278.63 = 7,953,429.68/x
  3. Step 3: Cross multiply
    13,422,271.52x = 20,133,278.63 × 7,953,429.68
  4. Step 4: Simplify right side
    13,422,271.52x = 160,128,615,811,551.72
  5. Step 5: Solve for x
    x = 160,128,615,811,551.72/13,422,271.52
  6. Step 6: Final answer
    x = 11,930,068.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.