Finding the Fourth Proportional to 1,391,344,787.24, 1,920,980,378.06 and 1,068,898,463.84
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Solution
The fourth proportional to 1,391,344,787.24, 1,920,980,378.06 and 1,068,898,463.84 is: 1,475,790,180.84
Step by Step Solution
- Step 1: Write the proportion equation
1,391,344,787.24 : 1,920,980,378.06 = 1,068,898,463.84 : x - Step 2: Convert to fraction form
1,391,344,787.24/1,920,980,378.06 = 1,068,898,463.84/x - Step 3: Cross multiply
1,391,344,787.24x = 1,920,980,378.06 × 1,068,898,463.84 - Step 4: Simplify right side
1,391,344,787.24x = 2,053,332,975,160,167,168 - Step 5: Solve for x
x = 2,053,332,975,160,167,168/1,391,344,787.24 - Step 6: Final answer
x = 1,475,790,180.84
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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.