Finding the Fourth Proportional to 361,547,998.80, 542,321,998.20 and 88,918,765.80
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Solution
The fourth proportional to 361,547,998.80, 542,321,998.20 and 88,918,765.80 is: 133,378,148.70
Step by Step Solution
- Step 1: Write the proportion equation
361,547,998.80 : 542,321,998.20 = 88,918,765.80 : x - Step 2: Convert to fraction form
361,547,998.80/542,321,998.20 = 88,918,765.80/x - Step 3: Cross multiply
361,547,998.80x = 542,321,998.20 × 88,918,765.80 - Step 4: Simplify right side
361,547,998.80x = 48,222,602,746,133,824 - Step 5: Solve for x
x = 48,222,602,746,133,824/361,547,998.80 - Step 6: Final answer
x = 133,378,148.70
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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.