Home / 15,317,367.72-21,137,603.36-8,348,265.42

Finding the Fourth Proportional to 15,317,367.72, 21,137,603.36 and 8,348,265.42

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Solution

The fourth proportional to 15,317,367.72, 21,137,603.36 and 8,348,265.42 is: 11,520,407.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317,367.72 : 21,137,603.36 = 8,348,265.42 : x
  2. Step 2: Convert to fraction form
    15,317,367.72/21,137,603.36 = 8,348,265.42/x
  3. Step 3: Cross multiply
    15,317,367.72x = 21,137,603.36 × 8,348,265.42
  4. Step 4: Simplify right side
    15,317,367.72x = 176,462,323,191,963.81
  5. Step 5: Solve for x
    x = 176,462,323,191,963.81/15,317,367.72
  6. Step 6: Final answer
    x = 11,520,407.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.