Finding the Fourth Proportional to 291,830,641.26, 402,731,328.51 and 159,683,187.42
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Solution
The fourth proportional to 291,830,641.26, 402,731,328.51 and 159,683,187.42 is: 220,365,558.37
Step by Step Solution
- Step 1: Write the proportion equation
291,830,641.26 : 402,731,328.51 = 159,683,187.42 : x - Step 2: Convert to fraction form
291,830,641.26/402,731,328.51 = 159,683,187.42/x - Step 3: Cross multiply
291,830,641.26x = 402,731,328.51 × 159,683,187.42 - Step 4: Simplify right side
291,830,641.26x = 64,309,422,210,367,912 - Step 5: Solve for x
x = 64,309,422,210,367,912/291,830,641.26 - Step 6: Final answer
x = 220,365,558.37
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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.