Finding the Fourth Proportional to 355,272,927.60, 490,006,126.68 and 305,797,507.44
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Solution
The fourth proportional to 355,272,927.60, 490,006,126.68 and 305,797,507.44 is: 421,767,718.64
Step by Step Solution
- Step 1: Write the proportion equation
355,272,927.60 : 490,006,126.68 = 305,797,507.44 : x - Step 2: Convert to fraction form
355,272,927.60/490,006,126.68 = 305,797,507.44/x - Step 3: Cross multiply
355,272,927.60x = 490,006,126.68 × 305,797,507.44 - Step 4: Simplify right side
355,272,927.60x = 149,842,652,169,072,896 - Step 5: Solve for x
x = 149,842,652,169,072,896/355,272,927.60 - Step 6: Final answer
x = 421,767,718.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.