Home / 1,108,894,090.21-1,530,285,937.73-613,865,065.57

Finding the Fourth Proportional to 1,108,894,090.21, 1,530,285,937.73 and 613,865,065.57

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Solution

The fourth proportional to 1,108,894,090.21, 1,530,285,937.73 and 613,865,065.57 is: 847,140,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,894,090.21 : 1,530,285,937.73 = 613,865,065.57 : x
  2. Step 2: Convert to fraction form
    1,108,894,090.21/1,530,285,937.73 = 613,865,065.57/x
  3. Step 3: Cross multiply
    1,108,894,090.21x = 1,530,285,937.73 × 613,865,065.57
  4. Step 4: Simplify right side
    1,108,894,090.21x = 939,389,077,505,475,456
  5. Step 5: Solve for x
    x = 939,389,077,505,475,456/1,108,894,090.21
  6. Step 6: Final answer
    x = 847,140,485.10

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Why These Related Problems?

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