Home / 2,825,787,647.52-3,899,518,129.80-1,555,618,307.76

Finding the Fourth Proportional to 2,825,787,647.52, 3,899,518,129.80 and 1,555,618,307.76

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Solution

The fourth proportional to 2,825,787,647.52, 3,899,518,129.80 and 1,555,618,307.76 is: 2,146,715,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825,787,647.52 : 3,899,518,129.80 = 1,555,618,307.76 : x
  2. Step 2: Convert to fraction form
    2,825,787,647.52/3,899,518,129.80 = 1,555,618,307.76/x
  3. Step 3: Cross multiply
    2,825,787,647.52x = 3,899,518,129.80 × 1,555,618,307.76
  4. Step 4: Simplify right side
    2,825,787,647.52x = 6,066,161,794,158,916,608
  5. Step 5: Solve for x
    x = 6,066,161,794,158,916,608/2,825,787,647.52
  6. Step 6: Final answer
    x = 2,146,715,376.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.