Home / 30,921,812.62-46,381,013.06-12,721,401.80

Finding the Fourth Proportional to 30,921,812.62, 46,381,013.06 and 12,721,401.80

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Solution

The fourth proportional to 30,921,812.62, 46,381,013.06 and 12,721,401.80 is: 19,081,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921,812.62 : 46,381,013.06 = 12,721,401.80 : x
  2. Step 2: Convert to fraction form
    30,921,812.62/46,381,013.06 = 12,721,401.80/x
  3. Step 3: Cross multiply
    30,921,812.62x = 46,381,013.06 × 12,721,401.80
  4. Step 4: Simplify right side
    30,921,812.62x = 590,031,503,027,307.62
  5. Step 5: Solve for x
    x = 590,031,503,027,307.62/30,921,812.62
  6. Step 6: Final answer
    x = 19,081,400.90

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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.