Finding the Fourth Proportional to 922,569,763.84, 1,273,145,443.92 and 520,768,105.60
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Solution
The fourth proportional to 922,569,763.84, 1,273,145,443.92 and 520,768,105.60 is: 718,659,517.11
Step by Step Solution
- Step 1: Write the proportion equation
922,569,763.84 : 1,273,145,443.92 = 520,768,105.60 : x - Step 2: Convert to fraction form
922,569,763.84/1,273,145,443.92 = 520,768,105.60/x - Step 3: Cross multiply
922,569,763.84x = 1,273,145,443.92 × 520,768,105.60 - Step 4: Simplify right side
922,569,763.84x = 663,013,540,983,489,536 - Step 5: Solve for x
x = 663,013,540,983,489,536/922,569,763.84 - Step 6: Final answer
x = 718,659,517.11
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1.5x scale
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.