Home / 1,621,458,449.28-2,237,552,713.44-878,886,568.80

Finding the Fourth Proportional to 1,621,458,449.28, 2,237,552,713.44 and 878,886,568.80

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Solution

The fourth proportional to 1,621,458,449.28, 2,237,552,713.44 and 878,886,568.80 is: 1,212,830,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,458,449.28 : 2,237,552,713.44 = 878,886,568.80 : x
  2. Step 2: Convert to fraction form
    1,621,458,449.28/2,237,552,713.44 = 878,886,568.80/x
  3. Step 3: Cross multiply
    1,621,458,449.28x = 2,237,552,713.44 × 878,886,568.80
  4. Step 4: Simplify right side
    1,621,458,449.28x = 1,966,555,026,824,411,136
  5. Step 5: Solve for x
    x = 1,966,555,026,824,411,136/1,621,458,449.28
  6. Step 6: Final answer
    x = 1,212,830,971.83

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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.