Finding the Fourth Proportional to 293,420,536.40, 440,130,804.60 and 157,371,640.40
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Solution
The fourth proportional to 293,420,536.40, 440,130,804.60 and 157,371,640.40 is: 236,057,460.60
Step by Step Solution
- Step 1: Write the proportion equation
293,420,536.40 : 440,130,804.60 = 157,371,640.40 : x - Step 2: Convert to fraction form
293,420,536.40/440,130,804.60 = 157,371,640.40/x - Step 3: Cross multiply
293,420,536.40x = 440,130,804.60 × 157,371,640.40 - Step 4: Simplify right side
293,420,536.40x = 69,264,106,710,473,872 - Step 5: Solve for x
x = 69,264,106,710,473,872/293,420,536.40 - Step 6: Final answer
x = 236,057,460.60
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1.5x scale
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.