Home / 825,653,574,138.15-1,238,480,361,207.20-259,864,692,002.55

Finding the Fourth Proportional to 825,653,574,138.15, 1,238,480,361,207.20 and 259,864,692,002.55

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Solution

The fourth proportional to 825,653,574,138.15, 1,238,480,361,207.20 and 259,864,692,002.55 is: 389,797,038,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,653,574,138.15 : 1,238,480,361,207.20 = 259,864,692,002.55 : x
  2. Step 2: Convert to fraction form
    825,653,574,138.15/1,238,480,361,207.20 = 259,864,692,002.55/x
  3. Step 3: Cross multiply
    825,653,574,138.15x = 1,238,480,361,207.20 × 259,864,692,002.55
  4. Step 4: Simplify right side
    825,653,574,138.15x = 321,837,317,616,315,888,828,416
  5. Step 5: Solve for x
    x = 321,837,317,616,315,888,828,416/825,653,574,138.15
  6. Step 6: Final answer
    x = 389,797,038,003.82

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Double scale
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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.