Home / 1,028,702,812.67-1,419,648,905.12-576,589,136.28

Finding the Fourth Proportional to 1,028,702,812.67, 1,419,648,905.12 and 576,589,136.28

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Solution

The fourth proportional to 1,028,702,812.67, 1,419,648,905.12 and 576,589,136.28 is: 795,714,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,702,812.67 : 1,419,648,905.12 = 576,589,136.28 : x
  2. Step 2: Convert to fraction form
    1,028,702,812.67/1,419,648,905.12 = 576,589,136.28/x
  3. Step 3: Cross multiply
    1,028,702,812.67x = 1,419,648,905.12 × 576,589,136.28
  4. Step 4: Simplify right side
    1,028,702,812.67x = 818,554,136,023,988,352
  5. Step 5: Solve for x
    x = 818,554,136,023,988,352/1,028,702,812.67
  6. Step 6: Final answer
    x = 795,714,880.86

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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.