Finding the Fourth Proportional to 395,031,310.74, 544,706,442.03 and 251,750,210.65
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Solution
The fourth proportional to 395,031,310.74, 544,706,442.03 and 251,750,210.65 is: 347,136,942.81
Step by Step Solution
- Step 1: Write the proportion equation
395,031,310.74 : 544,706,442.03 = 251,750,210.65 : x - Step 2: Convert to fraction form
395,031,310.74/544,706,442.03 = 251,750,210.65/x - Step 3: Cross multiply
395,031,310.74x = 544,706,442.03 × 251,750,210.65 - Step 4: Simplify right side
395,031,310.74x = 137,129,961,525,108,784 - Step 5: Solve for x
x = 137,129,961,525,108,784/395,031,310.74 - Step 6: Final answer
x = 347,136,942.81
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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.