Finding the Fourth Proportional to 854,709,283.74, 1,274,877,847.05 and 776,244,677.31
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Solution
The fourth proportional to 854,709,283.74, 1,274,877,847.05 and 776,244,677.31 is: 1,157,840,638.71
Step by Step Solution
- Step 1: Write the proportion equation
854,709,283.74 : 1,274,877,847.05 = 776,244,677.31 : x - Step 2: Convert to fraction form
854,709,283.74/1,274,877,847.05 = 776,244,677.31/x - Step 3: Cross multiply
854,709,283.74x = 1,274,877,847.05 × 776,244,677.31 - Step 4: Simplify right side
854,709,283.74x = 989,617,142,992,994,688 - Step 5: Solve for x
x = 989,617,142,992,994,688/854,709,283.74 - Step 6: Final answer
x = 1,157,840,638.71
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.