Home / 1,208,736,938.80-1,813,105,408.20-945,709,073.20

Finding the Fourth Proportional to 1,208,736,938.80, 1,813,105,408.20 and 945,709,073.20

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Solution

The fourth proportional to 1,208,736,938.80, 1,813,105,408.20 and 945,709,073.20 is: 1,418,563,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,736,938.80 : 1,813,105,408.20 = 945,709,073.20 : x
  2. Step 2: Convert to fraction form
    1,208,736,938.80/1,813,105,408.20 = 945,709,073.20/x
  3. Step 3: Cross multiply
    1,208,736,938.80x = 1,813,105,408.20 × 945,709,073.20
  4. Step 4: Simplify right side
    1,208,736,938.80x = 1,714,670,235,202,729,728
  5. Step 5: Solve for x
    x = 1,714,670,235,202,729,728/1,208,736,938.80
  6. Step 6: Final answer
    x = 1,418,563,609.80

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Double scale
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1.5x scale

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.