Finding the Fourth Proportional to 936,976,567.68, 1,293,027,783.84 and 519,315,816.96
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Solution
The fourth proportional to 936,976,567.68, 1,293,027,783.84 and 519,315,816.96 is: 716,655,894.16
Step by Step Solution
- Step 1: Write the proportion equation
936,976,567.68 : 1,293,027,783.84 = 519,315,816.96 : x - Step 2: Convert to fraction form
936,976,567.68/1,293,027,783.84 = 519,315,816.96/x - Step 3: Cross multiply
936,976,567.68x = 1,293,027,783.84 × 519,315,816.96 - Step 4: Simplify right side
936,976,567.68x = 671,489,779,916,847,872 - Step 5: Solve for x
x = 671,489,779,916,847,872/936,976,567.68 - Step 6: Final answer
x = 716,655,894.16
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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.