Home / 12,938,700.20-19,408,050.30-8,151,794.60

Finding the Fourth Proportional to 12,938,700.20, 19,408,050.30 and 8,151,794.60

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Solution

The fourth proportional to 12,938,700.20, 19,408,050.30 and 8,151,794.60 is: 12,227,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,700.20 : 19,408,050.30 = 8,151,794.60 : x
  2. Step 2: Convert to fraction form
    12,938,700.20/19,408,050.30 = 8,151,794.60/x
  3. Step 3: Cross multiply
    12,938,700.20x = 19,408,050.30 × 8,151,794.60
  4. Step 4: Simplify right side
    12,938,700.20x = 158,210,439,632,068.38
  5. Step 5: Solve for x
    x = 158,210,439,632,068.38/12,938,700.20
  6. Step 6: Final answer
    x = 12,227,691.90

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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.