Home / 21,167,995.60-31,751,993.40-18,144,686.80

Finding the Fourth Proportional to 21,167,995.60, 31,751,993.40 and 18,144,686.80

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Solution

The fourth proportional to 21,167,995.60, 31,751,993.40 and 18,144,686.80 is: 27,217,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,995.60 : 31,751,993.40 = 18,144,686.80 : x
  2. Step 2: Convert to fraction form
    21,167,995.60/31,751,993.40 = 18,144,686.80/x
  3. Step 3: Cross multiply
    21,167,995.60x = 31,751,993.40 × 18,144,686.80
  4. Step 4: Simplify right side
    21,167,995.60x = 576,129,975,518,667.12
  5. Step 5: Solve for x
    x = 576,129,975,518,667.12/21,167,995.60
  6. Step 6: Final answer
    x = 27,217,030.20

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1.5x scale

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.