Home / 686,317,369.60-1,029,476,054.40-219,977,892.10

Finding the Fourth Proportional to 686,317,369.60, 1,029,476,054.40 and 219,977,892.10

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Solution

The fourth proportional to 686,317,369.60, 1,029,476,054.40 and 219,977,892.10 is: 329,966,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,317,369.60 : 1,029,476,054.40 = 219,977,892.10 : x
  2. Step 2: Convert to fraction form
    686,317,369.60/1,029,476,054.40 = 219,977,892.10/x
  3. Step 3: Cross multiply
    686,317,369.60x = 1,029,476,054.40 × 219,977,892.10
  4. Step 4: Simplify right side
    686,317,369.60x = 226,461,972,414,336,928
  5. Step 5: Solve for x
    x = 226,461,972,414,336,928/686,317,369.60
  6. Step 6: Final answer
    x = 329,966,838.15

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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.