Home / 2,157,900,201.52-2,977,870,586.22-1,205,294,841.28

Finding the Fourth Proportional to 2,157,900,201.52, 2,977,870,586.22 and 1,205,294,841.28

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Solution

The fourth proportional to 2,157,900,201.52, 2,977,870,586.22 and 1,205,294,841.28 is: 1,663,289,179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,900,201.52 : 2,977,870,586.22 = 1,205,294,841.28 : x
  2. Step 2: Convert to fraction form
    2,157,900,201.52/2,977,870,586.22 = 1,205,294,841.28/x
  3. Step 3: Cross multiply
    2,157,900,201.52x = 2,977,870,586.22 × 1,205,294,841.28
  4. Step 4: Simplify right side
    2,157,900,201.52x = 3,589,212,055,570,415,104
  5. Step 5: Solve for x
    x = 3,589,212,055,570,415,104/2,157,900,201.52
  6. Step 6: Final answer
    x = 1,663,289,179.47

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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.