Home / 1,227,240,430.80-1,693,580,614.56-670,323,330.24

Finding the Fourth Proportional to 1,227,240,430.80, 1,693,580,614.56 and 670,323,330.24

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Solution

The fourth proportional to 1,227,240,430.80, 1,693,580,614.56 and 670,323,330.24 is: 925,040,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,240,430.80 : 1,693,580,614.56 = 670,323,330.24 : x
  2. Step 2: Convert to fraction form
    1,227,240,430.80/1,693,580,614.56 = 670,323,330.24/x
  3. Step 3: Cross multiply
    1,227,240,430.80x = 1,693,580,614.56 × 670,323,330.24
  4. Step 4: Simplify right side
    1,227,240,430.80x = 1,135,246,597,581,764,992
  5. Step 5: Solve for x
    x = 1,135,246,597,581,764,992/1,227,240,430.80
  6. Step 6: Final answer
    x = 925,040,089.20

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Double scale
Find fourth proportional to 1,227,240,431.80, 1,693,580,615.94 and 670,323,331.24
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1.5x scale

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.