Finding the Fourth Proportional to 419,878,031.10, 579,431,932.35 and 234,239,046.99
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Solution
The fourth proportional to 419,878,031.10, 579,431,932.35 and 234,239,046.99 is: 323,250,023.99
Step by Step Solution
- Step 1: Write the proportion equation
419,878,031.10 : 579,431,932.35 = 234,239,046.99 : x - Step 2: Convert to fraction form
419,878,031.10/579,431,932.35 = 234,239,046.99/x - Step 3: Cross multiply
419,878,031.10x = 579,431,932.35 × 234,239,046.99 - Step 4: Simplify right side
419,878,031.10x = 135,725,583,625,169,808 - Step 5: Solve for x
x = 135,725,583,625,169,808/419,878,031.10 - Step 6: Final answer
x = 323,250,023.99
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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.