Home / 1,115,336,382,836.30-1,673,768,779,231.30-389,267,713,137.60

Finding the Fourth Proportional to 1,115,336,382,836.30, 1,673,768,779,231.30 and 389,267,713,137.60

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Solution

The fourth proportional to 1,115,336,382,836.30, 1,673,768,779,231.30 and 389,267,713,137.60 is: 584,168,287,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,336,382,836.30 : 1,673,768,779,231.30 = 389,267,713,137.60 : x
  2. Step 2: Convert to fraction form
    1,115,336,382,836.30/1,673,768,779,231.30 = 389,267,713,137.60/x
  3. Step 3: Cross multiply
    1,115,336,382,836.30x = 1,673,768,779,231.30 × 389,267,713,137.60
  4. Step 4: Simplify right side
    1,115,336,382,836.30x = 651,544,145,012,480,607,780,864
  5. Step 5: Solve for x
    x = 651,544,145,012,480,607,780,864/1,115,336,382,836.30
  6. Step 6: Final answer
    x = 584,168,287,737.20

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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.