Finding the Fourth Proportional to 760,369,509.68, 1,049,130,077.30 and 430,344,638.96
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Solution
The fourth proportional to 760,369,509.68, 1,049,130,077.30 and 430,344,638.96 is: 593,773,814.69
Step by Step Solution
- Step 1: Write the proportion equation
760,369,509.68 : 1,049,130,077.30 = 430,344,638.96 : x - Step 2: Convert to fraction form
760,369,509.68/1,049,130,077.30 = 430,344,638.96/x - Step 3: Cross multiply
760,369,509.68x = 1,049,130,077.30 × 430,344,638.96 - Step 4: Simplify right side
760,369,509.68x = 451,487,504,337,745,344 - Step 5: Solve for x
x = 451,487,504,337,745,344/760,369,509.68 - Step 6: Final answer
x = 593,773,814.69
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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.