Finding the Fourth Proportional to 1,169,242,168.84, 1,613,349,092.64 and 667,221,742.60
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Solution
The fourth proportional to 1,169,242,168.84, 1,613,349,092.64 and 667,221,742.60 is: 920,648,965.37
Step by Step Solution
- Step 1: Write the proportion equation
1,169,242,168.84 : 1,613,349,092.64 = 667,221,742.60 : x - Step 2: Convert to fraction form
1,169,242,168.84/1,613,349,092.64 = 667,221,742.60/x - Step 3: Cross multiply
1,169,242,168.84x = 1,613,349,092.64 × 667,221,742.60 - Step 4: Simplify right side
1,169,242,168.84x = 1,076,461,593,013,389,696 - Step 5: Solve for x
x = 1,076,461,593,013,389,696/1,169,242,168.84 - Step 6: Final answer
x = 920,648,965.37
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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.