Finding the Fourth Proportional to 97,994,449.20, 146,991,673.80 and 68,769,130.80
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Solution
The fourth proportional to 97,994,449.20, 146,991,673.80 and 68,769,130.80 is: 103,153,696.20
Step by Step Solution
- Step 1: Write the proportion equation
97,994,449.20 : 146,991,673.80 = 68,769,130.80 : x - Step 2: Convert to fraction form
97,994,449.20/146,991,673.80 = 68,769,130.80/x - Step 3: Cross multiply
97,994,449.20x = 146,991,673.80 × 68,769,130.80 - Step 4: Simplify right side
97,994,449.20x = 10,108,489,642,063,134 - Step 5: Solve for x
x = 10,108,489,642,063,134/97,994,449.20 - Step 6: Final answer
x = 103,153,696.20
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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.