Home / 1,443,486,459.56-1,992,013,236.42-783,436,737.56

Finding the Fourth Proportional to 1,443,486,459.56, 1,992,013,236.42 and 783,436,737.56

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Solution

The fourth proportional to 1,443,486,459.56, 1,992,013,236.42 and 783,436,737.56 is: 1,081,143,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,486,459.56 : 1,992,013,236.42 = 783,436,737.56 : x
  2. Step 2: Convert to fraction form
    1,443,486,459.56/1,992,013,236.42 = 783,436,737.56/x
  3. Step 3: Cross multiply
    1,443,486,459.56x = 1,992,013,236.42 × 783,436,737.56
  4. Step 4: Simplify right side
    1,443,486,459.56x = 1,560,616,351,117,221,632
  5. Step 5: Solve for x
    x = 1,560,616,351,117,221,632/1,443,486,459.56
  6. Step 6: Final answer
    x = 1,081,143,741.10

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Double scale
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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.