Home / 155,989,593.84-215,263,010.64-86,373,479.64

Finding the Fourth Proportional to 155,989,593.84, 215,263,010.64 and 86,373,479.64

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Solution

The fourth proportional to 155,989,593.84, 215,263,010.64 and 86,373,479.64 is: 119,193,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,989,593.84 : 215,263,010.64 = 86,373,479.64 : x
  2. Step 2: Convert to fraction form
    155,989,593.84/215,263,010.64 = 86,373,479.64/x
  3. Step 3: Cross multiply
    155,989,593.84x = 215,263,010.64 × 86,373,479.64
  4. Step 4: Simplify right side
    155,989,593.84x = 18,593,015,266,759,144
  5. Step 5: Solve for x
    x = 18,593,015,266,759,144/155,989,593.84
  6. Step 6: Final answer
    x = 119,193,946.27

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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.