Home / 12,921,479.60-19,382,219.40-4,411,425.20

Finding the Fourth Proportional to 12,921,479.60, 19,382,219.40 and 4,411,425.20

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Solution

The fourth proportional to 12,921,479.60, 19,382,219.40 and 4,411,425.20 is: 6,617,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,479.60 : 19,382,219.40 = 4,411,425.20 : x
  2. Step 2: Convert to fraction form
    12,921,479.60/19,382,219.40 = 4,411,425.20/x
  3. Step 3: Cross multiply
    12,921,479.60x = 19,382,219.40 × 4,411,425.20
  4. Step 4: Simplify right side
    12,921,479.60x = 85,503,211,093,088.88
  5. Step 5: Solve for x
    x = 85,503,211,093,088.88/12,921,479.60
  6. Step 6: Final answer
    x = 6,617,137.80

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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.