Home / 198,138,045.60-297,207,068.40-106,305,040.80

Finding the Fourth Proportional to 198,138,045.60, 297,207,068.40 and 106,305,040.80

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Solution

The fourth proportional to 198,138,045.60, 297,207,068.40 and 106,305,040.80 is: 159,457,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,138,045.60 : 297,207,068.40 = 106,305,040.80 : x
  2. Step 2: Convert to fraction form
    198,138,045.60/297,207,068.40 = 106,305,040.80/x
  3. Step 3: Cross multiply
    198,138,045.60x = 297,207,068.40 × 106,305,040.80
  4. Step 4: Simplify right side
    198,138,045.60x = 31,594,609,532,310,388
  5. Step 5: Solve for x
    x = 31,594,609,532,310,388/198,138,045.60
  6. Step 6: Final answer
    x = 159,457,561.20

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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.