Home / 155,137,088.39-214,089,830.21-85,520,941.79

Finding the Fourth Proportional to 155,137,088.39, 214,089,830.21 and 85,520,941.79

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Solution

The fourth proportional to 155,137,088.39, 214,089,830.21 and 85,520,941.79 is: 118,019,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,137,088.39 : 214,089,830.21 = 85,520,941.79 : x
  2. Step 2: Convert to fraction form
    155,137,088.39/214,089,830.21 = 85,520,941.79/x
  3. Step 3: Cross multiply
    155,137,088.39x = 214,089,830.21 × 85,520,941.79
  4. Step 4: Simplify right side
    155,137,088.39x = 18,309,163,906,792,792
  5. Step 5: Solve for x
    x = 18,309,163,906,792,792/155,137,088.39
  6. Step 6: Final answer
    x = 118,019,257.01

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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.