Home / 14,319,981.30-21,473,312.25-5,215,740.78

Finding the Fourth Proportional to 14,319,981.30, 21,473,312.25 and 5,215,740.78

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Solution

The fourth proportional to 14,319,981.30, 21,473,312.25 and 5,215,740.78 is: 7,821,185.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319,981.30 : 21,473,312.25 = 5,215,740.78 : x
  2. Step 2: Convert to fraction form
    14,319,981.30/21,473,312.25 = 5,215,740.78/x
  3. Step 3: Cross multiply
    14,319,981.30x = 21,473,312.25 × 5,215,740.78
  4. Step 4: Simplify right side
    14,319,981.30x = 111,999,230,383,998.56
  5. Step 5: Solve for x
    x = 111,999,230,383,998.56/14,319,981.30
  6. Step 6: Final answer
    x = 7,821,185.52

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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.