Finding the Fourth Proportional to 668,205,865, 922,112,779.62 and 374,844,134.44
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Solution
The fourth proportional to 668,205,865, 922,112,779.62 and 374,844,134.44 is: 517,278,558.66
Step by Step Solution
- Step 1: Write the proportion equation
668,205,865 : 922,112,779.62 = 374,844,134.44 : x - Step 2: Convert to fraction form
668,205,865/922,112,779.62 = 374,844,134.44/x - Step 3: Cross multiply
668,205,865x = 922,112,779.62 × 374,844,134.44 - Step 4: Simplify right side
668,205,865x = 345,648,566,732,721,344 - Step 5: Solve for x
x = 345,648,566,732,721,344/668,205,865 - Step 6: Final answer
x = 517,278,558.66
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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.