Home / 30,009,521.16-41,397,902.55-18,977,691.60

Finding the Fourth Proportional to 30,009,521.16, 41,397,902.55 and 18,977,691.60

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Solution

The fourth proportional to 30,009,521.16, 41,397,902.55 and 18,977,691.60 is: 26,179,578.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009,521.16 : 41,397,902.55 = 18,977,691.60 : x
  2. Step 2: Convert to fraction form
    30,009,521.16/41,397,902.55 = 18,977,691.60/x
  3. Step 3: Cross multiply
    30,009,521.16x = 41,397,902.55 × 18,977,691.60
  4. Step 4: Simplify right side
    30,009,521.16x = 785,636,627,480,753.62
  5. Step 5: Solve for x
    x = 785,636,627,480,753.62/30,009,521.16
  6. Step 6: Final answer
    x = 26,179,578.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.