Finding the Fourth Proportional to 765,678,344.74, 1,056,630,740.97 and 417,997,832.74
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Solution
The fourth proportional to 765,678,344.74, 1,056,630,740.97 and 417,997,832.74 is: 576,834,075.00
Step by Step Solution
- Step 1: Write the proportion equation
765,678,344.74 : 1,056,630,740.97 = 417,997,832.74 : x - Step 2: Convert to fraction form
765,678,344.74/1,056,630,740.97 = 417,997,832.74/x - Step 3: Cross multiply
765,678,344.74x = 1,056,630,740.97 × 417,997,832.74 - Step 4: Simplify right side
765,678,344.74x = 441,669,359,731,920,320 - Step 5: Solve for x
x = 441,669,359,731,920,320/765,678,344.74 - Step 6: Final answer
x = 576,834,075.00
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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.