Finding the Fourth Proportional to 115,452,929.40, 159,264,637.94 and 71,385,841.68
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Solution
The fourth proportional to 115,452,929.40, 159,264,637.94 and 71,385,841.68 is: 98,475,112.66
Step by Step Solution
- Step 1: Write the proportion equation
115,452,929.40 : 159,264,637.94 = 71,385,841.68 : x - Step 2: Convert to fraction form
115,452,929.40/159,264,637.94 = 71,385,841.68/x - Step 3: Cross multiply
115,452,929.40x = 159,264,637.94 × 71,385,841.68 - Step 4: Simplify right side
115,452,929.40x = 11,369,240,229,684,448 - Step 5: Solve for x
x = 11,369,240,229,684,448/115,452,929.40 - Step 6: Final answer
x = 98,475,112.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.