Finding the Fourth Proportional to 158,860,795.95, 218,721,114.68 and 135,562,422.51
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Solution
The fourth proportional to 158,860,795.95, 218,721,114.68 and 135,562,422.51 is: 186,643,683.75
Step by Step Solution
- Step 1: Write the proportion equation
158,860,795.95 : 218,721,114.68 = 135,562,422.51 : x - Step 2: Convert to fraction form
158,860,795.95/218,721,114.68 = 135,562,422.51/x - Step 3: Cross multiply
158,860,795.95x = 218,721,114.68 × 135,562,422.51 - Step 4: Simplify right side
158,860,795.95x = 29,650,364,159,430,512 - Step 5: Solve for x
x = 29,650,364,159,430,512/158,860,795.95 - Step 6: Final answer
x = 186,643,683.75
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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.