Home / 1,121,009,747.70-1,681,514,621.55-654,191,973.30

Finding the Fourth Proportional to 1,121,009,747.70, 1,681,514,621.55 and 654,191,973.30

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Solution

The fourth proportional to 1,121,009,747.70, 1,681,514,621.55 and 654,191,973.30 is: 981,287,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,009,747.70 : 1,681,514,621.55 = 654,191,973.30 : x
  2. Step 2: Convert to fraction form
    1,121,009,747.70/1,681,514,621.55 = 654,191,973.30/x
  3. Step 3: Cross multiply
    1,121,009,747.70x = 1,681,514,621.55 × 654,191,973.30
  4. Step 4: Simplify right side
    1,121,009,747.70x = 1,100,033,368,404,597,120
  5. Step 5: Solve for x
    x = 1,100,033,368,404,597,120/1,121,009,747.70
  6. Step 6: Final answer
    x = 981,287,959.95

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Double scale
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Similar ratio
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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.