Finding the Fourth Proportional to 163,386,075.40, 245,079,113.10 and 145,529,657.80
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Solution
The fourth proportional to 163,386,075.40, 245,079,113.10 and 145,529,657.80 is: 218,294,486.70
Step by Step Solution
- Step 1: Write the proportion equation
163,386,075.40 : 245,079,113.10 = 145,529,657.80 : x - Step 2: Convert to fraction form
163,386,075.40/245,079,113.10 = 145,529,657.80/x - Step 3: Cross multiply
163,386,075.40x = 245,079,113.10 × 145,529,657.80 - Step 4: Simplify right side
163,386,075.40x = 35,666,279,463,370,500 - Step 5: Solve for x
x = 35,666,279,463,370,500/163,386,075.40 - Step 6: Final answer
x = 218,294,486.70
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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.