Home / 121,076,761.20-182,093,438.70-108,641,041.80

Finding the Fourth Proportional to 121,076,761.20, 182,093,438.70 and 108,641,041.80

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Solution

The fourth proportional to 121,076,761.20, 182,093,438.70 and 108,641,041.80 is: 163,390,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,076,761.20 : 182,093,438.70 = 108,641,041.80 : x
  2. Step 2: Convert to fraction form
    121,076,761.20/182,093,438.70 = 108,641,041.80/x
  3. Step 3: Cross multiply
    121,076,761.20x = 182,093,438.70 × 108,641,041.80
  4. Step 4: Simplify right side
    121,076,761.20x = 19,782,820,885,312,436
  5. Step 5: Solve for x
    x = 19,782,820,885,312,436/121,076,761.20
  6. Step 6: Final answer
    x = 163,390,734.02

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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.