Home / 121,120,569.60-181,722,844.80-53,012,140.80

Finding the Fourth Proportional to 121,120,569.60, 181,722,844.80 and 53,012,140.80

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Solution

The fourth proportional to 121,120,569.60, 181,722,844.80 and 53,012,140.80 is: 79,536,589.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,120,569.60 : 181,722,844.80 = 53,012,140.80 : x
  2. Step 2: Convert to fraction form
    121,120,569.60/181,722,844.80 = 53,012,140.80/x
  3. Step 3: Cross multiply
    121,120,569.60x = 181,722,844.80 × 53,012,140.80
  4. Step 4: Simplify right side
    121,120,569.60x = 9,633,517,035,114,148
  5. Step 5: Solve for x
    x = 9,633,517,035,114,148/121,120,569.60
  6. Step 6: Final answer
    x = 79,536,589.59

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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.