Home / 121,054,549.20-181,581,823.80-111,701,187.60

Finding the Fourth Proportional to 121,054,549.20, 181,581,823.80 and 111,701,187.60

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Solution

The fourth proportional to 121,054,549.20, 181,581,823.80 and 111,701,187.60 is: 167,551,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,054,549.20 : 181,581,823.80 = 111,701,187.60 : x
  2. Step 2: Convert to fraction form
    121,054,549.20/181,581,823.80 = 111,701,187.60/x
  3. Step 3: Cross multiply
    121,054,549.20x = 181,581,823.80 × 111,701,187.60
  4. Step 4: Simplify right side
    121,054,549.20x = 20,282,905,365,033,944
  5. Step 5: Solve for x
    x = 20,282,905,365,033,944/121,054,549.20
  6. Step 6: Final answer
    x = 167,551,781.40

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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.