Finding the Fourth Proportional to 918,876,317.00, 1,268,156,521.40 and 522,458,704.08
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Solution
The fourth proportional to 918,876,317.00, 1,268,156,521.40 and 522,458,704.08 is: 721,053,966.12
Step by Step Solution
- Step 1: Write the proportion equation
918,876,317.00 : 1,268,156,521.40 = 522,458,704.08 : x - Step 2: Convert to fraction form
918,876,317.00/1,268,156,521.40 = 522,458,704.08/x - Step 3: Cross multiply
918,876,317.00x = 1,268,156,521.40 × 522,458,704.08 - Step 4: Simplify right side
918,876,317.00x = 662,559,412,742,550,912 - Step 5: Solve for x
x = 662,559,412,742,550,912/918,876,317.00 - Step 6: Final answer
x = 721,053,966.12
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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.