Finding the Fourth Proportional to 429,955,788.75, 644,927,202.09 and 193,438,280.28
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Solution
The fourth proportional to 429,955,788.75, 644,927,202.09 and 193,438,280.28 is: 290,154,504.58
Step by Step Solution
- Step 1: Write the proportion equation
429,955,788.75 : 644,927,202.09 = 193,438,280.28 : x - Step 2: Convert to fraction form
429,955,788.75/644,927,202.09 = 193,438,280.28/x - Step 3: Cross multiply
429,955,788.75x = 644,927,202.09 × 193,438,280.28 - Step 4: Simplify right side
429,955,788.75x = 124,753,608,878,081,632 - Step 5: Solve for x
x = 124,753,608,878,081,632/429,955,788.75 - Step 6: Final answer
x = 290,154,504.58
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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.