Home / 13,319,307.90-18,380,644.20-7,207,736.40

Finding the Fourth Proportional to 13,319,307.90, 18,380,644.20 and 7,207,736.40

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Solution

The fourth proportional to 13,319,307.90, 18,380,644.20 and 7,207,736.40 is: 9,946,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,307.90 : 18,380,644.20 = 7,207,736.40 : x
  2. Step 2: Convert to fraction form
    13,319,307.90/18,380,644.20 = 7,207,736.40/x
  3. Step 3: Cross multiply
    13,319,307.90x = 18,380,644.20 × 7,207,736.40
  4. Step 4: Simplify right side
    13,319,307.90x = 132,482,838,255,788.88
  5. Step 5: Solve for x
    x = 132,482,838,255,788.88/13,319,307.90
  6. Step 6: Final answer
    x = 9,946,675.85

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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.