Finding the Fourth Proportional to 112,328,437.80, 168,492,656.70 and 99,573,853.80
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Solution
The fourth proportional to 112,328,437.80, 168,492,656.70 and 99,573,853.80 is: 149,360,780.70
Step by Step Solution
- Step 1: Write the proportion equation
112,328,437.80 : 168,492,656.70 = 99,573,853.80 : x - Step 2: Convert to fraction form
112,328,437.80/168,492,656.70 = 99,573,853.80/x - Step 3: Cross multiply
112,328,437.80x = 168,492,656.70 × 99,573,853.80 - Step 4: Simplify right side
112,328,437.80x = 16,777,463,164,619,388 - Step 5: Solve for x
x = 16,777,463,164,619,388/112,328,437.80 - Step 6: Final answer
x = 149,360,780.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.