Home / 20,668,748.80-30,989,126.40-10,563,059.20

Finding the Fourth Proportional to 20,668,748.80, 30,989,126.40 and 10,563,059.20

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Solution

The fourth proportional to 20,668,748.80, 30,989,126.40 and 10,563,059.20 is: 15,837,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,748.80 : 30,989,126.40 = 10,563,059.20 : x
  2. Step 2: Convert to fraction form
    20,668,748.80/30,989,126.40 = 10,563,059.20/x
  3. Step 3: Cross multiply
    20,668,748.80x = 30,989,126.40 × 10,563,059.20
  4. Step 4: Simplify right side
    20,668,748.80x = 327,339,976,719,482.81
  5. Step 5: Solve for x
    x = 327,339,976,719,482.81/20,668,748.80
  6. Step 6: Final answer
    x = 15,837,435.54

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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.