Finding the Fourth Proportional to 559,872,697.20, 839,809,045.80 and 423,823,801.20
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Solution
The fourth proportional to 559,872,697.20, 839,809,045.80 and 423,823,801.20 is: 635,735,701.80
Step by Step Solution
- Step 1: Write the proportion equation
559,872,697.20 : 839,809,045.80 = 423,823,801.20 : x - Step 2: Convert to fraction form
559,872,697.20/839,809,045.80 = 423,823,801.20/x - Step 3: Cross multiply
559,872,697.20x = 839,809,045.80 × 423,823,801.20 - Step 4: Simplify right side
559,872,697.20x = 355,931,062,073,100,864 - Step 5: Solve for x
x = 355,931,062,073,100,864/559,872,697.20 - Step 6: Final answer
x = 635,735,701.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.