Finding the Fourth Proportional to 623,913,222.08, 861,048,722.40 and 345,480,651.20
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Solution
The fourth proportional to 623,913,222.08, 861,048,722.40 and 345,480,651.20 is: 476,790,141.32
Step by Step Solution
- Step 1: Write the proportion equation
623,913,222.08 : 861,048,722.40 = 345,480,651.20 : x - Step 2: Convert to fraction form
623,913,222.08/861,048,722.40 = 345,480,651.20/x - Step 3: Cross multiply
623,913,222.08x = 861,048,722.40 × 345,480,651.20 - Step 4: Simplify right side
623,913,222.08x = 297,475,673,329,680,000 - Step 5: Solve for x
x = 297,475,673,329,680,000/623,913,222.08 - Step 6: Final answer
x = 476,790,141.32
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1.5x scale
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.