Finding the Fourth Proportional to 942,998,439.99, 1,301,279,212.26 and 519,588,406.75
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Solution
The fourth proportional to 942,998,439.99, 1,301,279,212.26 and 519,588,406.75 is: 716,999,693.70
Step by Step Solution
- Step 1: Write the proportion equation
942,998,439.99 : 1,301,279,212.26 = 519,588,406.75 : x - Step 2: Convert to fraction form
942,998,439.99/1,301,279,212.26 = 519,588,406.75/x - Step 3: Cross multiply
942,998,439.99x = 1,301,279,212.26 × 519,588,406.75 - Step 4: Simplify right side
942,998,439.99x = 676,129,592,629,031,936 - Step 5: Solve for x
x = 676,129,592,629,031,936/942,998,439.99 - Step 6: Final answer
x = 716,999,693.70
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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.