Finding the Fourth Proportional to 1,921,241,393.28, 2,651,315,389.44 and 1,041,175,097.28
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Solution
The fourth proportional to 1,921,241,393.28, 2,651,315,389.44 and 1,041,175,097.28 is: 1,436,822,862.64
Step by Step Solution
- Step 1: Write the proportion equation
1,921,241,393.28 : 2,651,315,389.44 = 1,041,175,097.28 : x - Step 2: Convert to fraction form
1,921,241,393.28/2,651,315,389.44 = 1,041,175,097.28/x - Step 3: Cross multiply
1,921,241,393.28x = 2,651,315,389.44 × 1,041,175,097.28 - Step 4: Simplify right side
1,921,241,393.28x = 2,760,483,558,520,153,088 - Step 5: Solve for x
x = 2,760,483,558,520,153,088/1,921,241,393.28 - Step 6: Final answer
x = 1,436,822,862.64
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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.