Home / 19,210,506.40-28,815,759.60-7,859,101.60

Finding the Fourth Proportional to 19,210,506.40, 28,815,759.60 and 7,859,101.60

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Solution

The fourth proportional to 19,210,506.40, 28,815,759.60 and 7,859,101.60 is: 11,788,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210,506.40 : 28,815,759.60 = 7,859,101.60 : x
  2. Step 2: Convert to fraction form
    19,210,506.40/28,815,759.60 = 7,859,101.60/x
  3. Step 3: Cross multiply
    19,210,506.40x = 28,815,759.60 × 7,859,101.60
  4. Step 4: Simplify right side
    19,210,506.40x = 226,465,982,377,575.38
  5. Step 5: Solve for x
    x = 226,465,982,377,575.38/19,210,506.40
  6. Step 6: Final answer
    x = 11,788,652.40

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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.