Home / 155,137,088.89-214,089,830.90-85,520,942.29

Finding the Fourth Proportional to 155,137,088.89, 214,089,830.90 and 85,520,942.29

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Solution

The fourth proportional to 155,137,088.89, 214,089,830.90 and 85,520,942.29 is: 118,019,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,137,088.89 : 214,089,830.90 = 85,520,942.29 : x
  2. Step 2: Convert to fraction form
    155,137,088.89/214,089,830.90 = 85,520,942.29/x
  3. Step 3: Cross multiply
    155,137,088.89x = 214,089,830.90 × 85,520,942.29
  4. Step 4: Simplify right side
    155,137,088.89x = 18,309,164,072,847,156
  5. Step 5: Solve for x
    x = 18,309,164,072,847,156/155,137,088.89
  6. Step 6: Final answer
    x = 118,019,257.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.