Finding the Fourth Proportional to 1,271,038,639.44, 1,754,054,297.92 and 698,845,868.08
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Solution
The fourth proportional to 1,271,038,639.44, 1,754,054,297.92 and 698,845,868.08 is: 964,418,830.75
Step by Step Solution
- Step 1: Write the proportion equation
1,271,038,639.44 : 1,754,054,297.92 = 698,845,868.08 : x - Step 2: Convert to fraction form
1,271,038,639.44/1,754,054,297.92 = 698,845,868.08/x - Step 3: Cross multiply
1,271,038,639.44x = 1,754,054,297.92 × 698,845,868.08 - Step 4: Simplify right side
1,271,038,639.44x = 1,225,813,598,489,357,568 - Step 5: Solve for x
x = 1,225,813,598,489,357,568/1,271,038,639.44 - Step 6: Final answer
x = 964,418,830.75
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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.