Home / 1,432,640,907.20-2,148,961,360.80-1,400,790,411.20

Finding the Fourth Proportional to 1,432,640,907.20, 2,148,961,360.80 and 1,400,790,411.20

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Solution

The fourth proportional to 1,432,640,907.20, 2,148,961,360.80 and 1,400,790,411.20 is: 2,101,185,616.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,640,907.20 : 2,148,961,360.80 = 1,400,790,411.20 : x
  2. Step 2: Convert to fraction form
    1,432,640,907.20/2,148,961,360.80 = 1,400,790,411.20/x
  3. Step 3: Cross multiply
    1,432,640,907.20x = 2,148,961,360.80 × 1,400,790,411.20
  4. Step 4: Simplify right side
    1,432,640,907.20x = 3,010,244,468,247,943,680
  5. Step 5: Solve for x
    x = 3,010,244,468,247,943,680/1,432,640,907.20
  6. Step 6: Final answer
    x = 2,101,185,616.80

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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.