Finding the Fourth Proportional to 936,942,306.16, 1,292,980,419.48 and 519,317,371.12
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Solution
The fourth proportional to 936,942,306.16, 1,292,980,419.48 and 519,317,371.12 is: 716,657,992.64
Step by Step Solution
- Step 1: Write the proportion equation
936,942,306.16 : 1,292,980,419.48 = 519,317,371.12 : x - Step 2: Convert to fraction form
936,942,306.16/1,292,980,419.48 = 519,317,371.12/x - Step 3: Cross multiply
936,942,306.16x = 1,292,980,419.48 × 519,317,371.12 - Step 4: Simplify right side
936,942,306.16x = 671,467,192,353,988,480 - Step 5: Solve for x
x = 671,467,192,353,988,480/936,942,306.16 - Step 6: Final answer
x = 716,657,992.64
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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.