Finding the Fourth Proportional to 216,811,279.06, 299,199,947.54 and 117,692,095.09
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Solution
The fourth proportional to 216,811,279.06, 299,199,947.54 and 117,692,095.09 is: 162,415,298.82
Step by Step Solution
- Step 1: Write the proportion equation
216,811,279.06 : 299,199,947.54 = 117,692,095.09 : x - Step 2: Convert to fraction form
216,811,279.06/299,199,947.54 = 117,692,095.09/x - Step 3: Cross multiply
216,811,279.06x = 299,199,947.54 × 117,692,095.09 - Step 4: Simplify right side
216,811,279.06x = 35,213,468,676,212,236 - Step 5: Solve for x
x = 35,213,468,676,212,236/216,811,279.06 - Step 6: Final answer
x = 162,415,298.82
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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.