Home / 1,010,640,120.30-1,515,960,180.45-492,804,009.90

Finding the Fourth Proportional to 1,010,640,120.30, 1,515,960,180.45 and 492,804,009.90

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Solution

The fourth proportional to 1,010,640,120.30, 1,515,960,180.45 and 492,804,009.90 is: 739,206,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,640,120.30 : 1,515,960,180.45 = 492,804,009.90 : x
  2. Step 2: Convert to fraction form
    1,010,640,120.30/1,515,960,180.45 = 492,804,009.90/x
  3. Step 3: Cross multiply
    1,010,640,120.30x = 1,515,960,180.45 × 492,804,009.90
  4. Step 4: Simplify right side
    1,010,640,120.30x = 747,071,255,774,487,552
  5. Step 5: Solve for x
    x = 747,071,255,774,487,552/1,010,640,120.30
  6. Step 6: Final answer
    x = 739,206,014.85

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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.