Home / 30,963,989.80-46,431,987.90-13,915,887.40

Finding the Fourth Proportional to 30,963,989.80, 46,431,987.90 and 13,915,887.40

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Solution

The fourth proportional to 30,963,989.80, 46,431,987.90 and 13,915,887.40 is: 20,867,540.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,963,989.80 : 46,431,987.90 = 13,915,887.40 : x
  2. Step 2: Convert to fraction form
    30,963,989.80/46,431,987.90 = 13,915,887.40/x
  3. Step 3: Cross multiply
    30,963,989.80x = 46,431,987.90 × 13,915,887.40
  4. Step 4: Simplify right side
    30,963,989.80x = 646,142,315,374,562.50
  5. Step 5: Solve for x
    x = 646,142,315,374,562.50/30,963,989.80
  6. Step 6: Final answer
    x = 20,867,540.64

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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.