Finding the Fourth Proportional to 788,101,605.20, 1,182,152,407.80 and 498,253,683.80
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Solution
The fourth proportional to 788,101,605.20, 1,182,152,407.80 and 498,253,683.80 is: 747,380,525.70
Step by Step Solution
- Step 1: Write the proportion equation
788,101,605.20 : 1,182,152,407.80 = 498,253,683.80 : x - Step 2: Convert to fraction form
788,101,605.20/1,182,152,407.80 = 498,253,683.80/x - Step 3: Cross multiply
788,101,605.20x = 1,182,152,407.80 × 498,253,683.80 - Step 4: Simplify right side
788,101,605.20x = 589,011,791,999,389,824 - Step 5: Solve for x
x = 589,011,791,999,389,824/788,101,605.20 - Step 6: Final answer
x = 747,380,525.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.