Home / 1,018,796,544.96-1,405,930,780.55-572,761,896.41

Finding the Fourth Proportional to 1,018,796,544.96, 1,405,930,780.55 and 572,761,896.41

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Solution

The fourth proportional to 1,018,796,544.96, 1,405,930,780.55 and 572,761,896.41 is: 790,406,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,796,544.96 : 1,405,930,780.55 = 572,761,896.41 : x
  2. Step 2: Convert to fraction form
    1,018,796,544.96/1,405,930,780.55 = 572,761,896.41/x
  3. Step 3: Cross multiply
    1,018,796,544.96x = 1,405,930,780.55 × 572,761,896.41
  4. Step 4: Simplify right side
    1,018,796,544.96x = 805,263,580,089,660,672
  5. Step 5: Solve for x
    x = 805,263,580,089,660,672/1,018,796,544.96
  6. Step 6: Final answer
    x = 790,406,665.66

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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.