Home / 121,185,353.39-181,830,851.26-42,458,338.72

Finding the Fourth Proportional to 121,185,353.39, 181,830,851.26 and 42,458,338.72

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Solution

The fourth proportional to 121,185,353.39, 181,830,851.26 and 42,458,338.72 is: 63,706,014.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,185,353.39 : 181,830,851.26 = 42,458,338.72 : x
  2. Step 2: Convert to fraction form
    121,185,353.39/181,830,851.26 = 42,458,338.72/x
  3. Step 3: Cross multiply
    121,185,353.39x = 181,830,851.26 × 42,458,338.72
  4. Step 4: Simplify right side
    121,185,353.39x = 7,720,235,873,277,957
  5. Step 5: Solve for x
    x = 7,720,235,873,277,957/121,185,353.39
  6. Step 6: Final answer
    x = 63,706,014.44

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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.