Home / 18,697,069.40-28,045,604.10-8,461,909.40

Finding the Fourth Proportional to 18,697,069.40, 28,045,604.10 and 8,461,909.40

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Solution

The fourth proportional to 18,697,069.40, 28,045,604.10 and 8,461,909.40 is: 12,692,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,069.40 : 28,045,604.10 = 8,461,909.40 : x
  2. Step 2: Convert to fraction form
    18,697,069.40/28,045,604.10 = 8,461,909.40/x
  3. Step 3: Cross multiply
    18,697,069.40x = 28,045,604.10 × 8,461,909.40
  4. Step 4: Simplify right side
    18,697,069.40x = 237,319,360,962,468.56
  5. Step 5: Solve for x
    x = 237,319,360,962,468.56/18,697,069.40
  6. Step 6: Final answer
    x = 12,692,864.10

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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.