Home / 420,743,932.60-631,115,889.20-114,036,039.40

Finding the Fourth Proportional to 420,743,932.60, 631,115,889.20 and 114,036,039.40

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Solution

The fourth proportional to 420,743,932.60, 631,115,889.20 and 114,036,039.40 is: 171,054,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,743,932.60 : 631,115,889.20 = 114,036,039.40 : x
  2. Step 2: Convert to fraction form
    420,743,932.60/631,115,889.20 = 114,036,039.40/x
  3. Step 3: Cross multiply
    420,743,932.60x = 631,115,889.20 × 114,036,039.40
  4. Step 4: Simplify right side
    420,743,932.60x = 71,969,956,406,777,240
  5. Step 5: Solve for x
    x = 71,969,956,406,777,240/420,743,932.60
  6. Step 6: Final answer
    x = 171,054,056.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.