Home / 121,286,645.40-181,929,968.10-118,097,999.40

Finding the Fourth Proportional to 121,286,645.40, 181,929,968.10 and 118,097,999.40

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Solution

The fourth proportional to 121,286,645.40, 181,929,968.10 and 118,097,999.40 is: 177,146,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,286,645.40 : 181,929,968.10 = 118,097,999.40 : x
  2. Step 2: Convert to fraction form
    121,286,645.40/181,929,968.10 = 118,097,999.40/x
  3. Step 3: Cross multiply
    121,286,645.40x = 181,929,968.10 × 118,097,999.40
  4. Step 4: Simplify right side
    121,286,645.40x = 21,485,565,263,515,820
  5. Step 5: Solve for x
    x = 21,485,565,263,515,820/121,286,645.40
  6. Step 6: Final answer
    x = 177,146,999.10

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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.