Finding the Fourth Proportional to 922,569,563.80, 1,273,145,168.99 and 520,767,905.91
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Solution
The fourth proportional to 922,569,563.80, 1,273,145,168.99 and 520,767,905.91 is: 718,659,242.18
Step by Step Solution
- Step 1: Write the proportion equation
922,569,563.80 : 1,273,145,168.99 = 520,767,905.91 : x - Step 2: Convert to fraction form
922,569,563.80/1,273,145,168.99 = 520,767,905.91/x - Step 3: Cross multiply
922,569,563.80x = 1,273,145,168.99 × 520,767,905.91 - Step 4: Simplify right side
922,569,563.80x = 663,013,143,574,355,456 - Step 5: Solve for x
x = 663,013,143,574,355,456/922,569,563.80 - Step 6: Final answer
x = 718,659,242.18
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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.