Finding the Fourth Proportional to 648,751,313.68, 894,559,186.92 and 413,428,955.92
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Solution
The fourth proportional to 648,751,313.68, 894,559,186.92 and 413,428,955.92 is: 570,074,638.55
Step by Step Solution
- Step 1: Write the proportion equation
648,751,313.68 : 894,559,186.92 = 413,428,955.92 : x - Step 2: Convert to fraction form
648,751,313.68/894,559,186.92 = 413,428,955.92/x - Step 3: Cross multiply
648,751,313.68x = 894,559,186.92 × 413,428,955.92 - Step 4: Simplify right side
648,751,313.68x = 369,836,670,656,979,712 - Step 5: Solve for x
x = 369,836,670,656,979,712/648,751,313.68 - Step 6: Final answer
x = 570,074,638.55
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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.