Finding the Fourth Proportional to 502,984,226.36, 694,118,265.74 and 279,961,121.80
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Solution
The fourth proportional to 502,984,226.36, 694,118,265.74 and 279,961,121.80 is: 386,346,366.65
Step by Step Solution
- Step 1: Write the proportion equation
502,984,226.36 : 694,118,265.74 = 279,961,121.80 : x - Step 2: Convert to fraction form
502,984,226.36/694,118,265.74 = 279,961,121.80/x - Step 3: Cross multiply
502,984,226.36x = 694,118,265.74 × 279,961,121.80 - Step 4: Simplify right side
502,984,226.36x = 194,326,128,338,440,928 - Step 5: Solve for x
x = 194,326,128,338,440,928/502,984,226.36 - Step 6: Final answer
x = 386,346,366.65
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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.