Home / 155,136,969.77-214,089,666.50-85,520,823.17

Finding the Fourth Proportional to 155,136,969.77, 214,089,666.50 and 85,520,823.17

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Solution

The fourth proportional to 155,136,969.77, 214,089,666.50 and 85,520,823.17 is: 118,019,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,136,969.77 : 214,089,666.50 = 85,520,823.17 : x
  2. Step 2: Convert to fraction form
    155,136,969.77/214,089,666.50 = 85,520,823.17/x
  3. Step 3: Cross multiply
    155,136,969.77x = 214,089,666.50 × 85,520,823.17
  4. Step 4: Simplify right side
    155,136,969.77x = 18,309,124,510,414,128
  5. Step 5: Solve for x
    x = 18,309,124,510,414,128/155,136,969.77
  6. Step 6: Final answer
    x = 118,019,093.31

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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.