Finding the Fourth Proportional to 1,959,696,021.40, 2,939,544,032.10 and 1,338,909,947.80
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Solution
The fourth proportional to 1,959,696,021.40, 2,939,544,032.10 and 1,338,909,947.80 is: 2,008,364,921.70
Step by Step Solution
- Step 1: Write the proportion equation
1,959,696,021.40 : 2,939,544,032.10 = 1,338,909,947.80 : x - Step 2: Convert to fraction form
1,959,696,021.40/2,939,544,032.10 = 1,338,909,947.80/x - Step 3: Cross multiply
1,959,696,021.40x = 2,939,544,032.10 × 1,338,909,947.80 - Step 4: Simplify right side
1,959,696,021.40x = 3,935,784,746,574,812,160 - Step 5: Solve for x
x = 3,935,784,746,574,812,160/1,959,696,021.40 - Step 6: Final answer
x = 2,008,364,921.70
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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.