Finding the Fourth Proportional to 135,456,948.21, 186,946,095.35 and 75,934,320.63
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Solution
The fourth proportional to 135,456,948.21, 186,946,095.35 and 75,934,320.63 is: 104,798,055.27
Step by Step Solution
- Step 1: Write the proportion equation
135,456,948.21 : 186,946,095.35 = 75,934,320.63 : x - Step 2: Convert to fraction form
135,456,948.21/186,946,095.35 = 75,934,320.63/x - Step 3: Cross multiply
135,456,948.21x = 186,946,095.35 × 75,934,320.63 - Step 4: Simplify right side
135,456,948.21x = 14,195,624,745,373,810 - Step 5: Solve for x
x = 14,195,624,745,373,810/135,456,948.21 - Step 6: Final answer
x = 104,798,055.27
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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.