Finding the Fourth Proportional to 4,841,393.40, 6,681,171.60 and 2,666,138.76
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Solution
The fourth proportional to 4,841,393.40, 6,681,171.60 and 2,666,138.76 is: 3,679,298.31
Step by Step Solution
- Step 1: Write the proportion equation
4,841,393.40 : 6,681,171.60 = 2,666,138.76 : x - Step 2: Convert to fraction form
4,841,393.40/6,681,171.60 = 2,666,138.76/x - Step 3: Cross multiply
4,841,393.40x = 6,681,171.60 × 2,666,138.76 - Step 4: Simplify right side
4,841,393.40x = 17,812,930,564,971.21 - Step 5: Solve for x
x = 17,812,930,564,971.21/4,841,393.40 - Step 6: Final answer
x = 3,679,298.31
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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.