Home / 121,332,986.40-181,999,479.60-48,560,998.80

Finding the Fourth Proportional to 121,332,986.40, 181,999,479.60 and 48,560,998.80

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Solution

The fourth proportional to 121,332,986.40, 181,999,479.60 and 48,560,998.80 is: 72,841,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,332,986.40 : 181,999,479.60 = 48,560,998.80 : x
  2. Step 2: Convert to fraction form
    121,332,986.40/181,999,479.60 = 48,560,998.80/x
  3. Step 3: Cross multiply
    121,332,986.40x = 181,999,479.60 × 48,560,998.80
  4. Step 4: Simplify right side
    121,332,986.40x = 8,838,076,510,456,224
  5. Step 5: Solve for x
    x = 8,838,076,510,456,224/121,332,986.40
  6. Step 6: Final answer
    x = 72,841,498.20

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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.