Home / 12,631,487,999.40-18,947,231,999.10-3,440,629,247.40

Finding the Fourth Proportional to 12,631,487,999.40, 18,947,231,999.10 and 3,440,629,247.40

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Solution

The fourth proportional to 12,631,487,999.40, 18,947,231,999.10 and 3,440,629,247.40 is: 5,160,943,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631,487,999.40 : 18,947,231,999.10 = 3,440,629,247.40 : x
  2. Step 2: Convert to fraction form
    12,631,487,999.40/18,947,231,999.10 = 3,440,629,247.40/x
  3. Step 3: Cross multiply
    12,631,487,999.40x = 18,947,231,999.10 × 3,440,629,247.40
  4. Step 4: Simplify right side
    12,631,487,999.40x = 65,190,400,573,376,626,688
  5. Step 5: Solve for x
    x = 65,190,400,573,376,626,688/12,631,487,999.40
  6. Step 6: Final answer
    x = 5,160,943,871.10

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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.