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Finding the Fourth Proportional to 637,700,040.40, 956,774,009.40 and 274,305,787.60

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Solution

The fourth proportional to 637,700,040.40, 956,774,009.40 and 274,305,787.60 is: 411,555,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,700,040.40 : 956,774,009.40 = 274,305,787.60 : x
  2. Step 2: Convert to fraction form
    637,700,040.40/956,774,009.40 = 274,305,787.60/x
  3. Step 3: Cross multiply
    637,700,040.40x = 956,774,009.40 × 274,305,787.60
  4. Step 4: Simplify right side
    637,700,040.40x = 262,448,648,203,676,832
  5. Step 5: Solve for x
    x = 262,448,648,203,676,832/637,700,040.40
  6. Step 6: Final answer
    x = 411,555,012.67

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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.