Home / 5,108,831,999.80-7,663,247,999.70-1,428,331,449.40

Finding the Fourth Proportional to 5,108,831,999.80, 7,663,247,999.70 and 1,428,331,449.40

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Solution

The fourth proportional to 5,108,831,999.80, 7,663,247,999.70 and 1,428,331,449.40 is: 2,142,497,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108,831,999.80 : 7,663,247,999.70 = 1,428,331,449.40 : x
  2. Step 2: Convert to fraction form
    5,108,831,999.80/7,663,247,999.70 = 1,428,331,449.40/x
  3. Step 3: Cross multiply
    5,108,831,999.80x = 7,663,247,999.70 × 1,428,331,449.40
  4. Step 4: Simplify right side
    5,108,831,999.80x = 10,945,658,122,523,152,384
  5. Step 5: Solve for x
    x = 10,945,658,122,523,152,384/5,108,831,999.80
  6. Step 6: Final answer
    x = 2,142,497,174.10

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1.5x scale

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.