Home / 1,347,683,431.70-2,021,525,147.55-378,335,047.70

Finding the Fourth Proportional to 1,347,683,431.70, 2,021,525,147.55 and 378,335,047.70

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Solution

The fourth proportional to 1,347,683,431.70, 2,021,525,147.55 and 378,335,047.70 is: 567,502,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,683,431.70 : 2,021,525,147.55 = 378,335,047.70 : x
  2. Step 2: Convert to fraction form
    1,347,683,431.70/2,021,525,147.55 = 378,335,047.70/x
  3. Step 3: Cross multiply
    1,347,683,431.70x = 2,021,525,147.55 × 378,335,047.70
  4. Step 4: Simplify right side
    1,347,683,431.70x = 764,813,813,125,078,784
  5. Step 5: Solve for x
    x = 764,813,813,125,078,784/1,347,683,431.70
  6. Step 6: Final answer
    x = 567,502,571.55

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Double scale
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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.