Finding the Fourth Proportional to 621,423,471.20, 932,258,000.70 and 227,953,950.71
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Solution
The fourth proportional to 621,423,471.20, 932,258,000.70 and 227,953,950.71 is: 341,975,969.99
Step by Step Solution
- Step 1: Write the proportion equation
621,423,471.20 : 932,258,000.70 = 227,953,950.71 : x - Step 2: Convert to fraction form
621,423,471.20/932,258,000.70 = 227,953,950.71/x - Step 3: Cross multiply
621,423,471.20x = 932,258,000.70 × 227,953,950.71 - Step 4: Simplify right side
621,423,471.20x = 212,511,894,334,769,920 - Step 5: Solve for x
x = 212,511,894,334,769,920/621,423,471.20 - Step 6: Final answer
x = 341,975,969.99
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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.