Finding the Fourth Proportional to 854,109,335.84, 1,178,759,656.56 and 492,015,791.84
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Solution
The fourth proportional to 854,109,335.84, 1,178,759,656.56 and 492,015,791.84 is: 679,032,931.12
Step by Step Solution
- Step 1: Write the proportion equation
854,109,335.84 : 1,178,759,656.56 = 492,015,791.84 : x - Step 2: Convert to fraction form
854,109,335.84/1,178,759,656.56 = 492,015,791.84/x - Step 3: Cross multiply
854,109,335.84x = 1,178,759,656.56 × 492,015,791.84 - Step 4: Simplify right side
854,109,335.84x = 579,968,365,811,414,784 - Step 5: Solve for x
x = 579,968,365,811,414,784/854,109,335.84 - Step 6: Final answer
x = 679,032,931.12
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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.