Finding the Fourth Proportional to 723,701,981.97, 996,187,358.57 and 630,722,639.25
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Solution
The fourth proportional to 723,701,981.97, 996,187,358.57 and 630,722,639.25 is: 868,199,805.49
Step by Step Solution
- Step 1: Write the proportion equation
723,701,981.97 : 996,187,358.57 = 630,722,639.25 : x - Step 2: Convert to fraction form
723,701,981.97/996,187,358.57 = 630,722,639.25/x - Step 3: Cross multiply
723,701,981.97x = 996,187,358.57 × 630,722,639.25 - Step 4: Simplify right side
723,701,981.97x = 628,317,919,981,602,944 - Step 5: Solve for x
x = 628,317,919,981,602,944/723,701,981.97 - Step 6: Final answer
x = 868,199,805.49
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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.