Finding the Fourth Proportional to 165,858,916.18, 228,968,168.09 and 103,155,225.95
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Solution
The fourth proportional to 165,858,916.18, 228,968,168.09 and 103,155,225.95 is: 142,405,748.56
Step by Step Solution
- Step 1: Write the proportion equation
165,858,916.18 : 228,968,168.09 = 103,155,225.95 : x - Step 2: Convert to fraction form
165,858,916.18/228,968,168.09 = 103,155,225.95/x - Step 3: Cross multiply
165,858,916.18x = 228,968,168.09 × 103,155,225.95 - Step 4: Simplify right side
165,858,916.18x = 23,619,263,114,681,532 - Step 5: Solve for x
x = 23,619,263,114,681,532/165,858,916.18 - Step 6: Final answer
x = 142,405,748.56
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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.