Home / 30,963,990.80-46,431,989.40-13,915,888.40

Finding the Fourth Proportional to 30,963,990.80, 46,431,989.40 and 13,915,888.40

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Solution

The fourth proportional to 30,963,990.80, 46,431,989.40 and 13,915,888.40 is: 20,867,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,963,990.80 : 46,431,989.40 = 13,915,888.40 : x
  2. Step 2: Convert to fraction form
    30,963,990.80/46,431,989.40 = 13,915,888.40/x
  3. Step 3: Cross multiply
    30,963,990.80x = 46,431,989.40 × 13,915,888.40
  4. Step 4: Simplify right side
    30,963,990.80x = 646,142,382,680,383
  5. Step 5: Solve for x
    x = 646,142,382,680,383/30,963,990.80
  6. Step 6: Final answer
    x = 20,867,542.13

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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.