Home / 30,987,422.01-46,486,807.07-12,781,685.43

Finding the Fourth Proportional to 30,987,422.01, 46,486,807.07 and 12,781,685.43

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Solution

The fourth proportional to 30,987,422.01, 46,486,807.07 and 12,781,685.43 is: 19,174,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987,422.01 : 46,486,807.07 = 12,781,685.43 : x
  2. Step 2: Convert to fraction form
    30,987,422.01/46,486,807.07 = 12,781,685.43/x
  3. Step 3: Cross multiply
    30,987,422.01x = 46,486,807.07 × 12,781,685.43
  4. Step 4: Simplify right side
    30,987,422.01x = 594,179,744,613,840
  5. Step 5: Solve for x
    x = 594,179,744,613,840/30,987,422.01
  6. Step 6: Final answer
    x = 19,174,868.58

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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.