Finding the Fourth Proportional to 137,889,946.91, 190,299,502.52 and 79,163,944.94
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Solution
The fourth proportional to 137,889,946.91, 190,299,502.52 and 79,163,944.94 is: 109,252,774.96
Step by Step Solution
- Step 1: Write the proportion equation
137,889,946.91 : 190,299,502.52 = 79,163,944.94 : x - Step 2: Convert to fraction form
137,889,946.91/190,299,502.52 = 79,163,944.94/x - Step 3: Cross multiply
137,889,946.91x = 190,299,502.52 × 79,163,944.94 - Step 4: Simplify right side
137,889,946.91x = 15,064,859,338,255,354 - Step 5: Solve for x
x = 15,064,859,338,255,354/137,889,946.91 - Step 6: Final answer
x = 109,252,774.96
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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.