Home / 20,497,508.70-28,285,346.07-11,329,604.70

Finding the Fourth Proportional to 20,497,508.70, 28,285,346.07 and 11,329,604.70

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Solution

The fourth proportional to 20,497,508.70, 28,285,346.07 and 11,329,604.70 is: 15,634,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497,508.70 : 28,285,346.07 = 11,329,604.70 : x
  2. Step 2: Convert to fraction form
    20,497,508.70/28,285,346.07 = 11,329,604.70/x
  3. Step 3: Cross multiply
    20,497,508.70x = 28,285,346.07 × 11,329,604.70
  4. Step 4: Simplify right side
    20,497,508.70x = 320,461,789,775,798.50
  5. Step 5: Solve for x
    x = 320,461,789,775,798.50/20,497,508.70
  6. Step 6: Final answer
    x = 15,634,182.40

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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.