Finding the Fourth Proportional to 453,310,830.80, 679,966,246.20 and 417,031,125.20
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Solution
The fourth proportional to 453,310,830.80, 679,966,246.20 and 417,031,125.20 is: 625,546,687.80
Step by Step Solution
- Step 1: Write the proportion equation
453,310,830.80 : 679,966,246.20 = 417,031,125.20 : x - Step 2: Convert to fraction form
453,310,830.80/679,966,246.20 = 417,031,125.20/x - Step 3: Cross multiply
453,310,830.80x = 679,966,246.20 × 417,031,125.20 - Step 4: Simplify right side
453,310,830.80x = 283,567,088,750,806,240 - Step 5: Solve for x
x = 283,567,088,750,806,240/453,310,830.80 - Step 6: Final answer
x = 625,546,687.80
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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.