Home / 20,451,300.38-28,197,266.45-13,097,042.67

Finding the Fourth Proportional to 20,451,300.38, 28,197,266.45 and 13,097,042.67

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Solution

The fourth proportional to 20,451,300.38, 28,197,266.45 and 13,097,042.67 is: 18,057,570.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,300.38 : 28,197,266.45 = 13,097,042.67 : x
  2. Step 2: Convert to fraction form
    20,451,300.38/28,197,266.45 = 13,097,042.67/x
  3. Step 3: Cross multiply
    20,451,300.38x = 28,197,266.45 × 13,097,042.67
  4. Step 4: Simplify right side
    20,451,300.38x = 369,300,801,807,524.19
  5. Step 5: Solve for x
    x = 369,300,801,807,524.19/20,451,300.38
  6. Step 6: Final answer
    x = 18,057,570.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.