Home / 19,309,392.20-28,964,088.30-12,590,928.20

Finding the Fourth Proportional to 19,309,392.20, 28,964,088.30 and 12,590,928.20

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Solution

The fourth proportional to 19,309,392.20, 28,964,088.30 and 12,590,928.20 is: 18,886,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309,392.20 : 28,964,088.30 = 12,590,928.20 : x
  2. Step 2: Convert to fraction form
    19,309,392.20/28,964,088.30 = 12,590,928.20/x
  3. Step 3: Cross multiply
    19,309,392.20x = 28,964,088.30 × 12,590,928.20
  4. Step 4: Simplify right side
    19,309,392.20x = 364,684,756,163,760.06
  5. Step 5: Solve for x
    x = 364,684,756,163,760.06/19,309,392.20
  6. Step 6: Final answer
    x = 18,886,392.30

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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.