Home / 18,139,385.16-25,032,351.65-9,990,623.16

Finding the Fourth Proportional to 18,139,385.16, 25,032,351.65 and 9,990,623.16

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Solution

The fourth proportional to 18,139,385.16, 25,032,351.65 and 9,990,623.16 is: 13,787,060.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139,385.16 : 25,032,351.65 = 9,990,623.16 : x
  2. Step 2: Convert to fraction form
    18,139,385.16/25,032,351.65 = 9,990,623.16/x
  3. Step 3: Cross multiply
    18,139,385.16x = 25,032,351.65 × 9,990,623.16
  4. Step 4: Simplify right side
    18,139,385.16x = 250,088,792,093,801.09
  5. Step 5: Solve for x
    x = 250,088,792,093,801.09/18,139,385.16
  6. Step 6: Final answer
    x = 13,787,060.03

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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.