Home / 21,861,989.40-32,806,980.90-12,764,069.40

Finding the Fourth Proportional to 21,861,989.40, 32,806,980.90 and 12,764,069.40

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Solution

The fourth proportional to 21,861,989.40, 32,806,980.90 and 12,764,069.40 is: 19,154,276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861,989.40 : 32,806,980.90 = 12,764,069.40 : x
  2. Step 2: Convert to fraction form
    21,861,989.40/32,806,980.90 = 12,764,069.40/x
  3. Step 3: Cross multiply
    21,861,989.40x = 32,806,980.90 × 12,764,069.40
  4. Step 4: Simplify right side
    21,861,989.40x = 418,750,581,012,074.44
  5. Step 5: Solve for x
    x = 418,750,581,012,074.44/21,861,989.40
  6. Step 6: Final answer
    x = 19,154,276.10

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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.