Finding the Fourth Proportional to 904,586,020.84, 1,357,095,515.10 and 291,227,582.44
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Solution
The fourth proportional to 904,586,020.84, 1,357,095,515.10 and 291,227,582.44 is: 436,911,069.70
Step by Step Solution
- Step 1: Write the proportion equation
904,586,020.84 : 1,357,095,515.10 = 291,227,582.44 : x - Step 2: Convert to fraction form
904,586,020.84/1,357,095,515.10 = 291,227,582.44/x - Step 3: Cross multiply
904,586,020.84x = 1,357,095,515.10 × 291,227,582.44 - Step 4: Simplify right side
904,586,020.84x = 395,223,646,002,739,456 - Step 5: Solve for x
x = 395,223,646,002,739,456/904,586,020.84 - Step 6: Final answer
x = 436,911,069.70
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1.5x scale
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.