Home / 14,652,515.39-20,221,681.74-8,128,248.35

Finding the Fourth Proportional to 14,652,515.39, 20,221,681.74 and 8,128,248.35

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Solution

The fourth proportional to 14,652,515.39, 20,221,681.74 and 8,128,248.35 is: 11,217,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,515.39 : 20,221,681.74 = 8,128,248.35 : x
  2. Step 2: Convert to fraction form
    14,652,515.39/20,221,681.74 = 8,128,248.35/x
  3. Step 3: Cross multiply
    14,652,515.39x = 20,221,681.74 × 8,128,248.35
  4. Step 4: Simplify right side
    14,652,515.39x = 164,366,851,237,380.09
  5. Step 5: Solve for x
    x = 164,366,851,237,380.09/14,652,515.39
  6. Step 6: Final answer
    x = 11,217,654.23

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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.