Home / 18,789,415.40-28,184,123.10-15,600,909.80

Finding the Fourth Proportional to 18,789,415.40, 28,184,123.10 and 15,600,909.80

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Solution

The fourth proportional to 18,789,415.40, 28,184,123.10 and 15,600,909.80 is: 23,401,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789,415.40 : 28,184,123.10 = 15,600,909.80 : x
  2. Step 2: Convert to fraction form
    18,789,415.40/28,184,123.10 = 15,600,909.80/x
  3. Step 3: Cross multiply
    18,789,415.40x = 28,184,123.10 × 15,600,909.80
  4. Step 4: Simplify right side
    18,789,415.40x = 439,697,962,275,196.44
  5. Step 5: Solve for x
    x = 439,697,962,275,196.44/18,789,415.40
  6. Step 6: Final answer
    x = 23,401,364.70

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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.