Finding the Fourth Proportional to 155,280,316.80, 232,722,661.05 and 82,531,948.80
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Solution
The fourth proportional to 155,280,316.80, 232,722,661.05 and 82,531,948.80 is: 123,692,784.39
Step by Step Solution
- Step 1: Write the proportion equation
155,280,316.80 : 232,722,661.05 = 82,531,948.80 : x - Step 2: Convert to fraction form
155,280,316.80/232,722,661.05 = 82,531,948.80/x - Step 3: Cross multiply
155,280,316.80x = 232,722,661.05 × 82,531,948.80 - Step 4: Simplify right side
155,280,316.80x = 19,207,054,746,378,356 - Step 5: Solve for x
x = 19,207,054,746,378,356/155,280,316.80 - Step 6: Final answer
x = 123,692,784.39
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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.