Home / 14,652,485.55-20,221,672.28-8,128,216.89

Finding the Fourth Proportional to 14,652,485.55, 20,221,672.28 and 8,128,216.89

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Solution

The fourth proportional to 14,652,485.55, 20,221,672.28 and 8,128,216.89 is: 11,217,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,485.55 : 20,221,672.28 = 8,128,216.89 : x
  2. Step 2: Convert to fraction form
    14,652,485.55/20,221,672.28 = 8,128,216.89/x
  3. Step 3: Cross multiply
    14,652,485.55x = 20,221,672.28 × 8,128,216.89
  4. Step 4: Simplify right side
    14,652,485.55x = 164,366,138,129,699.72
  5. Step 5: Solve for x
    x = 164,366,138,129,699.72/14,652,485.55
  6. Step 6: Final answer
    x = 11,217,628.41

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1.5x scale

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.