Finding the Fourth Proportional to 404,612,603.70, 606,918,905.55 and 302,575,931.70
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Solution
The fourth proportional to 404,612,603.70, 606,918,905.55 and 302,575,931.70 is: 453,863,897.55
Step by Step Solution
- Step 1: Write the proportion equation
404,612,603.70 : 606,918,905.55 = 302,575,931.70 : x - Step 2: Convert to fraction form
404,612,603.70/606,918,905.55 = 302,575,931.70/x - Step 3: Cross multiply
404,612,603.70x = 606,918,905.55 × 302,575,931.70 - Step 4: Simplify right side
404,612,603.70x = 183,639,053,313,135,520 - Step 5: Solve for x
x = 183,639,053,313,135,520/404,612,603.70 - Step 6: Final answer
x = 453,863,897.55
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Double scale
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Similar ratio
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1.5x scale
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.