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Finding the Fourth Proportional to 274,683,485.70, 412,025,228.55 and 253,638,422.10

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Solution

The fourth proportional to 274,683,485.70, 412,025,228.55 and 253,638,422.10 is: 380,457,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,683,485.70 : 412,025,228.55 = 253,638,422.10 : x
  2. Step 2: Convert to fraction form
    274,683,485.70/412,025,228.55 = 253,638,422.10/x
  3. Step 3: Cross multiply
    274,683,485.70x = 412,025,228.55 × 253,638,422.10
  4. Step 4: Simplify right side
    274,683,485.70x = 104,505,428,834,813,872
  5. Step 5: Solve for x
    x = 104,505,428,834,813,872/274,683,485.70
  6. Step 6: Final answer
    x = 380,457,633.15

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Double scale
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Similar ratio
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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.