Finding the Fourth Proportional to 258,057,130.49, 356,119,490.97 and 140,583,316.68
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Solution
The fourth proportional to 258,057,130.49, 356,119,490.97 and 140,583,316.68 is: 194,005,331.61
Step by Step Solution
- Step 1: Write the proportion equation
258,057,130.49 : 356,119,490.97 = 140,583,316.68 : x - Step 2: Convert to fraction form
258,057,130.49/356,119,490.97 = 140,583,316.68/x - Step 3: Cross multiply
258,057,130.49x = 356,119,490.97 × 140,583,316.68 - Step 4: Simplify right side
258,057,130.49x = 50,064,459,174,955,920 - Step 5: Solve for x
x = 50,064,459,174,955,920/258,057,130.49 - Step 6: Final answer
x = 194,005,331.61
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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.