Finding the Fourth Proportional to 757,855,950.63, 1,045,842,832.70 and 427,831,089.63
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Solution
The fourth proportional to 757,855,950.63, 1,045,842,832.70 and 427,831,089.63 is: 590,407,818.69
Step by Step Solution
- Step 1: Write the proportion equation
757,855,950.63 : 1,045,842,832.70 = 427,831,089.63 : x - Step 2: Convert to fraction form
757,855,950.63/1,045,842,832.70 = 427,831,089.63/x - Step 3: Cross multiply
757,855,950.63x = 1,045,842,832.70 × 427,831,089.63 - Step 4: Simplify right side
757,855,950.63x = 447,444,078,695,766,784 - Step 5: Solve for x
x = 447,444,078,695,766,784/757,855,950.63 - Step 6: Final answer
x = 590,407,818.69
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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.