Finding the Fourth Proportional to 731,251,748.56, 1,009,145,980.20 and 401,226,800.08
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Solution
The fourth proportional to 731,251,748.56, 1,009,145,980.20 and 401,226,800.08 is: 553,703,171.65
Step by Step Solution
- Step 1: Write the proportion equation
731,251,748.56 : 1,009,145,980.20 = 401,226,800.08 : x - Step 2: Convert to fraction form
731,251,748.56/1,009,145,980.20 = 401,226,800.08/x - Step 3: Cross multiply
731,251,748.56x = 1,009,145,980.20 × 401,226,800.08 - Step 4: Simplify right side
731,251,748.56x = 404,896,412,449,241,024 - Step 5: Solve for x
x = 404,896,412,449,241,024/731,251,748.56 - Step 6: Final answer
x = 553,703,171.65
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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.