Home / 686,317,368.60-1,029,476,052.90-219,977,891.10

Finding the Fourth Proportional to 686,317,368.60, 1,029,476,052.90 and 219,977,891.10

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Solution

The fourth proportional to 686,317,368.60, 1,029,476,052.90 and 219,977,891.10 is: 329,966,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,317,368.60 : 1,029,476,052.90 = 219,977,891.10 : x
  2. Step 2: Convert to fraction form
    686,317,368.60/1,029,476,052.90 = 219,977,891.10/x
  3. Step 3: Cross multiply
    686,317,368.60x = 1,029,476,052.90 × 219,977,891.10
  4. Step 4: Simplify right side
    686,317,368.60x = 226,461,971,054,894,016
  5. Step 5: Solve for x
    x = 226,461,971,054,894,016/686,317,368.60
  6. Step 6: Final answer
    x = 329,966,836.65

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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.