Home / 155,131,376.94-214,082,776.59-85,519,254.54

Finding the Fourth Proportional to 155,131,376.94, 214,082,776.59 and 85,519,254.54

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Solution

The fourth proportional to 155,131,376.94, 214,082,776.59 and 85,519,254.54 is: 118,017,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,131,376.94 : 214,082,776.59 = 85,519,254.54 : x
  2. Step 2: Convert to fraction form
    155,131,376.94/214,082,776.59 = 85,519,254.54/x
  3. Step 3: Cross multiply
    155,131,376.94x = 214,082,776.59 × 85,519,254.54
  4. Step 4: Simplify right side
    155,131,376.94x = 18,308,199,463,830,164
  5. Step 5: Solve for x
    x = 18,308,199,463,830,164/155,131,376.94
  6. Step 6: Final answer
    x = 118,017,385.17

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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.