Home / 689,991,304,504.85-1,034,985,568,824.40-648,003,163,656.05

Finding the Fourth Proportional to 689,991,304,504.85, 1,034,985,568,824.40 and 648,003,163,656.05

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Solution

The fourth proportional to 689,991,304,504.85, 1,034,985,568,824.40 and 648,003,163,656.05 is: 972,003,442,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,991,304,504.85 : 1,034,985,568,824.40 = 648,003,163,656.05 : x
  2. Step 2: Convert to fraction form
    689,991,304,504.85/1,034,985,568,824.40 = 648,003,163,656.05/x
  3. Step 3: Cross multiply
    689,991,304,504.85x = 1,034,985,568,824.40 × 648,003,163,656.05
  4. Step 4: Simplify right side
    689,991,304,504.85x = 670,673,922,936,567,689,641,984
  5. Step 5: Solve for x
    x = 670,673,922,936,567,689,641,984/689,991,304,504.85
  6. Step 6: Final answer
    x = 972,003,442,011.28

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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.