Finding the Fourth Proportional to 135,287,135,518.48, 186,696,369,379 and 74,323,451,973.07
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Solution
The fourth proportional to 135,287,135,518.48, 186,696,369,379 and 74,323,451,973.07 is: 102,566,430,946.36
Step by Step Solution
- Step 1: Write the proportion equation
135,287,135,518.48 : 186,696,369,379 = 74,323,451,973.07 : x - Step 2: Convert to fraction form
135,287,135,518.48/186,696,369,379 = 74,323,451,973.07/x - Step 3: Cross multiply
135,287,135,518.48x = 186,696,369,379 × 74,323,451,973.07 - Step 4: Simplify right side
135,287,135,518.48x = 13,875,918,643,086,644,740,096 - Step 5: Solve for x
x = 13,875,918,643,086,644,740,096/135,287,135,518.48 - Step 6: Final answer
x = 102,566,430,946.36
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.