Home / 19,790,130.64-29,664,479.38-8,282,191.72

Finding the Fourth Proportional to 19,790,130.64, 29,664,479.38 and 8,282,191.72

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Solution

The fourth proportional to 19,790,130.64, 29,664,479.38 and 8,282,191.72 is: 12,414,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790,130.64 : 29,664,479.38 = 8,282,191.72 : x
  2. Step 2: Convert to fraction form
    19,790,130.64/29,664,479.38 = 8,282,191.72/x
  3. Step 3: Cross multiply
    19,790,130.64x = 29,664,479.38 × 8,282,191.72
  4. Step 4: Simplify right side
    19,790,130.64x = 245,686,905,499,146.72
  5. Step 5: Solve for x
    x = 245,686,905,499,146.72/19,790,130.64
  6. Step 6: Final answer
    x = 12,414,617.67

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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.