Home / 19,117,857.60-28,672,801.20-6,993,032.40

Finding the Fourth Proportional to 19,117,857.60, 28,672,801.20 and 6,993,032.40

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Solution

The fourth proportional to 19,117,857.60, 28,672,801.20 and 6,993,032.40 is: 10,488,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117,857.60 : 28,672,801.20 = 6,993,032.40 : x
  2. Step 2: Convert to fraction form
    19,117,857.60/28,672,801.20 = 6,993,032.40/x
  3. Step 3: Cross multiply
    19,117,857.60x = 28,672,801.20 × 6,993,032.40
  4. Step 4: Simplify right side
    19,117,857.60x = 200,509,827,790,358.88
  5. Step 5: Solve for x
    x = 200,509,827,790,358.88/19,117,857.60
  6. Step 6: Final answer
    x = 10,488,090.87

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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.