Finding the Fourth Proportional to 1,642,128,928.64, 2,266,119,880.64 and 889,423,377.92
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Solution
The fourth proportional to 1,642,128,928.64, 2,266,119,880.64 and 889,423,377.92 is: 1,227,394,490.08
Step by Step Solution
- Step 1: Write the proportion equation
1,642,128,928.64 : 2,266,119,880.64 = 889,423,377.92 : x - Step 2: Convert to fraction form
1,642,128,928.64/2,266,119,880.64 = 889,423,377.92/x - Step 3: Cross multiply
1,642,128,928.64x = 2,266,119,880.64 × 889,423,377.92 - Step 4: Simplify right side
1,642,128,928.64x = 2,015,539,999,010,495,744 - Step 5: Solve for x
x = 2,015,539,999,010,495,744/1,642,128,928.64 - Step 6: Final answer
x = 1,227,394,490.08
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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.