Home / 20,968,578,890.19-31,452,985,918.12-6,994,162,419.65

Finding the Fourth Proportional to 20,968,578,890.19, 31,452,985,918.12 and 6,994,162,419.65

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Solution

The fourth proportional to 20,968,578,890.19, 31,452,985,918.12 and 6,994,162,419.65 is: 10,491,282,849.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968,578,890.19 : 31,452,985,918.12 = 6,994,162,419.65 : x
  2. Step 2: Convert to fraction form
    20,968,578,890.19/31,452,985,918.12 = 6,994,162,419.65/x
  3. Step 3: Cross multiply
    20,968,578,890.19x = 31,452,985,918.12 × 6,994,162,419.65
  4. Step 4: Simplify right side
    20,968,578,890.19x = 219,987,292,094,295,539,712
  5. Step 5: Solve for x
    x = 219,987,292,094,295,539,712/20,968,578,890.19
  6. Step 6: Final answer
    x = 10,491,282,849.75

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Double scale
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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.