Finding the Fourth Proportional to 817,242,183.44, 1,127,818,032 and 445,988,129.12
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Solution
The fourth proportional to 817,242,183.44, 1,127,818,032 and 445,988,129.12 is: 615,476,616.69
Step by Step Solution
- Step 1: Write the proportion equation
817,242,183.44 : 1,127,818,032 = 445,988,129.12 : x - Step 2: Convert to fraction form
817,242,183.44/1,127,818,032 = 445,988,129.12/x - Step 3: Cross multiply
817,242,183.44x = 1,127,818,032 × 445,988,129.12 - Step 4: Simplify right side
817,242,183.44x = 502,993,454,079,480,320 - Step 5: Solve for x
x = 502,993,454,079,480,320/817,242,183.44 - Step 6: Final answer
x = 615,476,616.69
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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.