Home / 28,590,136.40-42,890,734.20-8,396,037.20

Finding the Fourth Proportional to 28,590,136.40, 42,890,734.20 and 8,396,037.20

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Solution

The fourth proportional to 28,590,136.40, 42,890,734.20 and 8,396,037.20 is: 12,595,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590,136.40 : 42,890,734.20 = 8,396,037.20 : x
  2. Step 2: Convert to fraction form
    28,590,136.40/42,890,734.20 = 8,396,037.20/x
  3. Step 3: Cross multiply
    28,590,136.40x = 42,890,734.20 × 8,396,037.20
  4. Step 4: Simplify right side
    28,590,136.40x = 360,112,199,878,512.25
  5. Step 5: Solve for x
    x = 360,112,199,878,512.25/28,590,136.40
  6. Step 6: Final answer
    x = 12,595,679.67

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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.