Home / 1,005,968,477.72-1,388,236,566.02-559,922,268.60

Finding the Fourth Proportional to 1,005,968,477.72, 1,388,236,566.02 and 559,922,268.60

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Solution

The fourth proportional to 1,005,968,477.72, 1,388,236,566.02 and 559,922,268.60 is: 772,692,767.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,968,477.72 : 1,388,236,566.02 = 559,922,268.60 : x
  2. Step 2: Convert to fraction form
    1,005,968,477.72/1,388,236,566.02 = 559,922,268.60/x
  3. Step 3: Cross multiply
    1,005,968,477.72x = 1,388,236,566.02 × 559,922,268.60
  4. Step 4: Simplify right side
    1,005,968,477.72x = 777,304,567,399,392,128
  5. Step 5: Solve for x
    x = 777,304,567,399,392,128/1,005,968,477.72
  6. Step 6: Final answer
    x = 772,692,767.83

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Half scale
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Double scale
Find fourth proportional to 1,005,968,478.72, 1,388,236,567.40 and 559,922,269.60
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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.