Home / 30,978,012.89-46,459,293.38-9,114,041.15

Finding the Fourth Proportional to 30,978,012.89, 46,459,293.38 and 9,114,041.15

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Solution

The fourth proportional to 30,978,012.89, 46,459,293.38 and 9,114,041.15 is: 13,668,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,978,012.89 : 46,459,293.38 = 9,114,041.15 : x
  2. Step 2: Convert to fraction form
    30,978,012.89/46,459,293.38 = 9,114,041.15/x
  3. Step 3: Cross multiply
    30,978,012.89x = 46,459,293.38 × 9,114,041.15
  4. Step 4: Simplify right side
    30,978,012.89x = 423,431,911,665,242.62
  5. Step 5: Solve for x
    x = 423,431,911,665,242.62/30,978,012.89
  6. Step 6: Final answer
    x = 13,668,788.67

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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.