Home / 18,173,055.21-25,078,976.36-9,913,154.19

Finding the Fourth Proportional to 18,173,055.21, 25,078,976.36 and 9,913,154.19

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Solution

The fourth proportional to 18,173,055.21, 25,078,976.36 and 9,913,154.19 is: 13,680,240.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173,055.21 : 25,078,976.36 = 9,913,154.19 : x
  2. Step 2: Convert to fraction form
    18,173,055.21/25,078,976.36 = 9,913,154.19/x
  3. Step 3: Cross multiply
    18,173,055.21x = 25,078,976.36 × 9,913,154.19
  4. Step 4: Simplify right side
    18,173,055.21x = 248,611,759,534,479.16
  5. Step 5: Solve for x
    x = 248,611,759,534,479.16/18,173,055.21
  6. Step 6: Final answer
    x = 13,680,240.15

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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.