Finding the Fourth Proportional to 990,085,121.48, 1,485,127,957.41 and 368,219,101.83
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Solution
The fourth proportional to 990,085,121.48, 1,485,127,957.41 and 368,219,101.83 is: 552,328,755.09
Step by Step Solution
- Step 1: Write the proportion equation
990,085,121.48 : 1,485,127,957.41 = 368,219,101.83 : x - Step 2: Convert to fraction form
990,085,121.48/1,485,127,957.41 = 368,219,101.83/x - Step 3: Cross multiply
990,085,121.48x = 1,485,127,957.41 × 368,219,101.83 - Step 4: Simplify right side
990,085,121.48x = 546,852,482,580,132,672 - Step 5: Solve for x
x = 546,852,482,580,132,672/990,085,121.48 - Step 6: Final answer
x = 552,328,755.09
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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.