Home / 1,225,644,774-1,689,413,942.16-829,023,122.40

Finding the Fourth Proportional to 1,225,644,774, 1,689,413,942.16 and 829,023,122.40

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Solution

The fourth proportional to 1,225,644,774, 1,689,413,942.16 and 829,023,122.40 is: 1,142,715,451.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,644,774 : 1,689,413,942.16 = 829,023,122.40 : x
  2. Step 2: Convert to fraction form
    1,225,644,774/1,689,413,942.16 = 829,023,122.40/x
  3. Step 3: Cross multiply
    1,225,644,774x = 1,689,413,942.16 × 829,023,122.40
  4. Step 4: Simplify right side
    1,225,644,774x = 1,400,563,221,355,576,320
  5. Step 5: Solve for x
    x = 1,400,563,221,355,576,320/1,225,644,774
  6. Step 6: Final answer
    x = 1,142,715,451.55

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