Home / 1,405,221,033,551.90-1,938,491,340,067.80-917,765,305,431.65

Finding the Fourth Proportional to 1,405,221,033,551.90, 1,938,491,340,067.80 and 917,765,305,431.65

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Solution

The fourth proportional to 1,405,221,033,551.90, 1,938,491,340,067.80 and 917,765,305,431.65 is: 1,266,050,005,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,221,033,551.90 : 1,938,491,340,067.80 = 917,765,305,431.65 : x
  2. Step 2: Convert to fraction form
    1,405,221,033,551.90/1,938,491,340,067.80 = 917,765,305,431.65/x
  3. Step 3: Cross multiply
    1,405,221,033,551.90x = 1,938,491,340,067.80 × 917,765,305,431.65
  4. Step 4: Simplify right side
    1,405,221,033,551.90x = 1,779,080,096,793,933,100,613,632
  5. Step 5: Solve for x
    x = 1,779,080,096,793,933,100,613,632/1,405,221,033,551.90
  6. Step 6: Final answer
    x = 1,266,050,005,170.40

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Double scale
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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.