Finding the Fourth Proportional to 158,860,794.70, 218,721,112.95 and 135,562,421.26
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Solution
The fourth proportional to 158,860,794.70, 218,721,112.95 and 135,562,421.26 is: 186,643,682.02
Step by Step Solution
- Step 1: Write the proportion equation
158,860,794.70 : 218,721,112.95 = 135,562,421.26 : x - Step 2: Convert to fraction form
158,860,794.70/218,721,112.95 = 135,562,421.26/x - Step 3: Cross multiply
158,860,794.70x = 218,721,112.95 × 135,562,421.26 - Step 4: Simplify right side
158,860,794.70x = 29,650,363,652,183,936 - Step 5: Solve for x
x = 29,650,363,652,183,936/158,860,794.70 - Step 6: Final answer
x = 186,643,682.02
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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.