Finding the Fourth Proportional to 279,426,203.80, 419,139,305.70 and 97,654,427.80
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Solution
The fourth proportional to 279,426,203.80, 419,139,305.70 and 97,654,427.80 is: 146,481,641.70
Step by Step Solution
- Step 1: Write the proportion equation
279,426,203.80 : 419,139,305.70 = 97,654,427.80 : x - Step 2: Convert to fraction form
279,426,203.80/419,139,305.70 = 97,654,427.80/x - Step 3: Cross multiply
279,426,203.80x = 419,139,305.70 × 97,654,427.80 - Step 4: Simplify right side
279,426,203.80x = 40,930,809,066,622,776 - Step 5: Solve for x
x = 40,930,809,066,622,776/279,426,203.80 - Step 6: Final answer
x = 146,481,641.70
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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.