Home / 30,621,645-45,940,980.20-13,351,355.15

Finding the Fourth Proportional to 30,621,645, 45,940,980.20 and 13,351,355.15

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Solution

The fourth proportional to 30,621,645, 45,940,980.20 and 13,351,355.15 is: 20,030,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621,645 : 45,940,980.20 = 13,351,355.15 : x
  2. Step 2: Convert to fraction form
    30,621,645/45,940,980.20 = 13,351,355.15/x
  3. Step 3: Cross multiply
    30,621,645x = 45,940,980.20 × 13,351,355.15
  4. Step 4: Simplify right side
    30,621,645x = 613,374,342,292,856.38
  5. Step 5: Solve for x
    x = 613,374,342,292,856.38/30,621,645
  6. Step 6: Final answer
    x = 20,030,744.34

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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.