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Finding the Fourth Proportional to 336,882,404.60, 505,323,606.90 and 205,935,342.20

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Solution

The fourth proportional to 336,882,404.60, 505,323,606.90 and 205,935,342.20 is: 308,903,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,882,404.60 : 505,323,606.90 = 205,935,342.20 : x
  2. Step 2: Convert to fraction form
    336,882,404.60/505,323,606.90 = 205,935,342.20/x
  3. Step 3: Cross multiply
    336,882,404.60x = 505,323,606.90 × 205,935,342.20
  4. Step 4: Simplify right side
    336,882,404.60x = 104,063,989,908,689,776
  5. Step 5: Solve for x
    x = 104,063,989,908,689,776/336,882,404.60
  6. Step 6: Final answer
    x = 308,903,013.30

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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.