Finding the Fourth Proportional to 992,407,045.76, 1,368,506,611.77 and 657,763,371.98
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Solution
The fourth proportional to 992,407,045.76, 1,368,506,611.77 and 657,763,371.98 is: 907,040,641.62
Step by Step Solution
- Step 1: Write the proportion equation
992,407,045.76 : 1,368,506,611.77 = 657,763,371.98 : x - Step 2: Convert to fraction form
992,407,045.76/1,368,506,611.77 = 657,763,371.98/x - Step 3: Cross multiply
992,407,045.76x = 1,368,506,611.77 × 657,763,371.98 - Step 4: Simplify right side
992,407,045.76x = 900,153,523,534,759,936 - Step 5: Solve for x
x = 900,153,523,534,759,936/992,407,045.76 - Step 6: Final answer
x = 907,040,641.62
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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.