Home / 20,488,977.60-30,733,466.40-19,313,246.40

Finding the Fourth Proportional to 20,488,977.60, 30,733,466.40 and 19,313,246.40

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Solution

The fourth proportional to 20,488,977.60, 30,733,466.40 and 19,313,246.40 is: 28,969,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,977.60 : 30,733,466.40 = 19,313,246.40 : x
  2. Step 2: Convert to fraction form
    20,488,977.60/30,733,466.40 = 19,313,246.40/x
  3. Step 3: Cross multiply
    20,488,977.60x = 30,733,466.40 × 19,313,246.40
  4. Step 4: Simplify right side
    20,488,977.60x = 593,563,009,309,320.88
  5. Step 5: Solve for x
    x = 593,563,009,309,320.88/20,488,977.60
  6. Step 6: Final answer
    x = 28,969,869.60

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1.5x scale

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.