Home / 18,879,118.40-28,333,423.20-8,782,990.40

Finding the Fourth Proportional to 18,879,118.40, 28,333,423.20 and 8,782,990.40

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Solution

The fourth proportional to 18,879,118.40, 28,333,423.20 and 8,782,990.40 is: 13,181,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879,118.40 : 28,333,423.20 = 8,782,990.40 : x
  2. Step 2: Convert to fraction form
    18,879,118.40/28,333,423.20 = 8,782,990.40/x
  3. Step 3: Cross multiply
    18,879,118.40x = 28,333,423.20 × 8,782,990.40
  4. Step 4: Simplify right side
    18,879,118.40x = 248,852,183,964,737.28
  5. Step 5: Solve for x
    x = 248,852,183,964,737.28/18,879,118.40
  6. Step 6: Final answer
    x = 13,181,345.58

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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.