Finding the Fourth Proportional to 465,198,044.98, 641,964,988.08 and 253,506,714.70
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Solution
The fourth proportional to 465,198,044.98, 641,964,988.08 and 253,506,714.70 is: 349,834,735.63
Step by Step Solution
- Step 1: Write the proportion equation
465,198,044.98 : 641,964,988.08 = 253,506,714.70 : x - Step 2: Convert to fraction form
465,198,044.98/641,964,988.08 = 253,506,714.70/x - Step 3: Cross multiply
465,198,044.98x = 641,964,988.08 × 253,506,714.70 - Step 4: Simplify right side
465,198,044.98x = 162,742,435,080,585,472 - Step 5: Solve for x
x = 162,742,435,080,585,472/465,198,044.98 - Step 6: Final answer
x = 349,834,735.63
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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.