Home / 121,146,118.72-181,764,975.69-47,422,587.31

Finding the Fourth Proportional to 121,146,118.72, 181,764,975.69 and 47,422,587.31

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Solution

The fourth proportional to 121,146,118.72, 181,764,975.69 and 47,422,587.31 is: 71,151,808.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,146,118.72 : 181,764,975.69 = 47,422,587.31 : x
  2. Step 2: Convert to fraction form
    121,146,118.72/181,764,975.69 = 47,422,587.31/x
  3. Step 3: Cross multiply
    121,146,118.72x = 181,764,975.69 × 47,422,587.31
  4. Step 4: Simplify right side
    121,146,118.72x = 8,619,765,429,104,639
  5. Step 5: Solve for x
    x = 8,619,765,429,104,639/121,146,118.72
  6. Step 6: Final answer
    x = 71,151,808.41

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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.