Finding the Fourth Proportional to 472,392,421.30, 708,588,631.95 and 424,775,307.70
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Solution
The fourth proportional to 472,392,421.30, 708,588,631.95 and 424,775,307.70 is: 637,162,961.55
Step by Step Solution
- Step 1: Write the proportion equation
472,392,421.30 : 708,588,631.95 = 424,775,307.70 : x - Step 2: Convert to fraction form
472,392,421.30/708,588,631.95 = 424,775,307.70/x - Step 3: Cross multiply
472,392,421.30x = 708,588,631.95 × 424,775,307.70 - Step 4: Simplify right side
472,392,421.30x = 300,990,954,169,283,328 - Step 5: Solve for x
x = 300,990,954,169,283,328/472,392,421.30 - Step 6: Final answer
x = 637,162,961.55
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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.