Finding the Fourth Proportional to 1,259,155,292.80, 1,888,732,939.20 and 996,127,427.20
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Solution
The fourth proportional to 1,259,155,292.80, 1,888,732,939.20 and 996,127,427.20 is: 1,494,191,140.80
Step by Step Solution
- Step 1: Write the proportion equation
1,259,155,292.80 : 1,888,732,939.20 = 996,127,427.20 : x - Step 2: Convert to fraction form
1,259,155,292.80/1,888,732,939.20 = 996,127,427.20/x - Step 3: Cross multiply
1,259,155,292.80x = 1,888,732,939.20 × 996,127,427.20 - Step 4: Simplify right side
1,259,155,292.80x = 1,881,418,683,393,190,144 - Step 5: Solve for x
x = 1,881,418,683,393,190,144/1,259,155,292.80 - Step 6: Final answer
x = 1,494,191,140.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.