Finding the Fourth Proportional to 939,875,487.48, 1,296,745,321.50 and 563,394,709.08
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Solution
The fourth proportional to 939,875,487.48, 1,296,745,321.50 and 563,394,709.08 is: 777,315,147.47
Step by Step Solution
- Step 1: Write the proportion equation
939,875,487.48 : 1,296,745,321.50 = 563,394,709.08 : x - Step 2: Convert to fraction form
939,875,487.48/1,296,745,321.50 = 563,394,709.08/x - Step 3: Cross multiply
939,875,487.48x = 1,296,745,321.50 × 563,394,709.08 - Step 4: Simplify right side
939,875,487.48x = 730,579,453,157,343,616 - Step 5: Solve for x
x = 730,579,453,157,343,616/939,875,487.48 - Step 6: Final answer
x = 777,315,147.47
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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.