Home / 1,020,307,540.77-1,530,704,187.30-330,214,794.75

Finding the Fourth Proportional to 1,020,307,540.77, 1,530,704,187.30 and 330,214,794.75

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Solution

The fourth proportional to 1,020,307,540.77, 1,530,704,187.30 and 330,214,794.75 is: 495,400,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,307,540.77 : 1,530,704,187.30 = 330,214,794.75 : x
  2. Step 2: Convert to fraction form
    1,020,307,540.77/1,530,704,187.30 = 330,214,794.75/x
  3. Step 3: Cross multiply
    1,020,307,540.77x = 1,530,704,187.30 × 330,214,794.75
  4. Step 4: Simplify right side
    1,020,307,540.77x = 505,461,169,032,235,072
  5. Step 5: Solve for x
    x = 505,461,169,032,235,072/1,020,307,540.77
  6. Step 6: Final answer
    x = 495,400,797.15

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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.