Home / 20,334,376.10-30,491,941.35-11,817,323.30

Finding the Fourth Proportional to 20,334,376.10, 30,491,941.35 and 11,817,323.30

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Solution

The fourth proportional to 20,334,376.10, 30,491,941.35 and 11,817,323.30 is: 17,720,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,376.10 : 30,491,941.35 = 11,817,323.30 : x
  2. Step 2: Convert to fraction form
    20,334,376.10/30,491,941.35 = 11,817,323.30/x
  3. Step 3: Cross multiply
    20,334,376.10x = 30,491,941.35 × 11,817,323.30
  4. Step 4: Simplify right side
    20,334,376.10x = 360,333,128,977,588.50
  5. Step 5: Solve for x
    x = 360,333,128,977,588.50/20,334,376.10
  6. Step 6: Final answer
    x = 17,720,392.66

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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.