Home / 13,823,128,438.76-19,068,889,548.21-8,396,219,907.20

Finding the Fourth Proportional to 13,823,128,438.76, 19,068,889,548.21 and 8,396,219,907.20

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Solution

The fourth proportional to 13,823,128,438.76, 19,068,889,548.21 and 8,396,219,907.20 is: 11,582,514,822.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823,128,438.76 : 19,068,889,548.21 = 8,396,219,907.20 : x
  2. Step 2: Convert to fraction form
    13,823,128,438.76/19,068,889,548.21 = 8,396,219,907.20/x
  3. Step 3: Cross multiply
    13,823,128,438.76x = 19,068,889,548.21 × 8,396,219,907.20
  4. Step 4: Simplify right side
    13,823,128,438.76x = 160,106,590,032,878,796,800
  5. Step 5: Solve for x
    x = 160,106,590,032,878,796,800/13,823,128,438.76
  6. Step 6: Final answer
    x = 11,582,514,822.33

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Double scale
Find fourth proportional to 13,823,128,439.76, 19,068,889,549.59 and 8,396,219,908.20
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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.