Home / 28,911,919.80-43,367,879.70-28,464,022.20

Finding the Fourth Proportional to 28,911,919.80, 43,367,879.70 and 28,464,022.20

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Solution

The fourth proportional to 28,911,919.80, 43,367,879.70 and 28,464,022.20 is: 42,696,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911,919.80 : 43,367,879.70 = 28,464,022.20 : x
  2. Step 2: Convert to fraction form
    28,911,919.80/43,367,879.70 = 28,464,022.20/x
  3. Step 3: Cross multiply
    28,911,919.80x = 43,367,879.70 × 28,464,022.20
  4. Step 4: Simplify right side
    28,911,919.80x = 1,234,424,290,547,729.50
  5. Step 5: Solve for x
    x = 1,234,424,290,547,729.50/28,911,919.80
  6. Step 6: Final answer
    x = 42,696,033.30

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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.