Finding the Fourth Proportional to 196,698,303.36, 271,439,343.54 and 107,387,193.87
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Solution
The fourth proportional to 196,698,303.36, 271,439,343.54 and 107,387,193.87 is: 148,191,971.72
Step by Step Solution
- Step 1: Write the proportion equation
196,698,303.36 : 271,439,343.54 = 107,387,193.87 : x - Step 2: Convert to fraction form
196,698,303.36/271,439,343.54 = 107,387,193.87/x - Step 3: Cross multiply
196,698,303.36x = 271,439,343.54 × 107,387,193.87 - Step 4: Simplify right side
196,698,303.36x = 29,149,109,408,675,516 - Step 5: Solve for x
x = 29,149,109,408,675,516/196,698,303.36 - Step 6: Final answer
x = 148,191,971.72
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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.