Home / 689,991,304,504.12-1,034,985,568,823.30-648,003,163,655.32

Finding the Fourth Proportional to 689,991,304,504.12, 1,034,985,568,823.30 and 648,003,163,655.32

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Solution

The fourth proportional to 689,991,304,504.12, 1,034,985,568,823.30 and 648,003,163,655.32 is: 972,003,442,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,991,304,504.12 : 1,034,985,568,823.30 = 648,003,163,655.32 : x
  2. Step 2: Convert to fraction form
    689,991,304,504.12/1,034,985,568,823.30 = 648,003,163,655.32/x
  3. Step 3: Cross multiply
    689,991,304,504.12x = 1,034,985,568,823.30 × 648,003,163,655.32
  4. Step 4: Simplify right side
    689,991,304,504.12x = 670,673,922,935,099,347,697,664
  5. Step 5: Solve for x
    x = 670,673,922,935,099,347,697,664/689,991,304,504.12
  6. Step 6: Final answer
    x = 972,003,442,010.18

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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.