Finding the Fourth Proportional to 868,802,783.08, 1,198,971,490.02 and 472,352,447.08
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Solution
The fourth proportional to 868,802,783.08, 1,198,971,490.02 and 472,352,447.08 is: 651,859,234.71
Step by Step Solution
- Step 1: Write the proportion equation
868,802,783.08 : 1,198,971,490.02 = 472,352,447.08 : x - Step 2: Convert to fraction form
868,802,783.08/1,198,971,490.02 = 472,352,447.08/x - Step 3: Cross multiply
868,802,783.08x = 1,198,971,490.02 × 472,352,447.08 - Step 4: Simplify right side
868,802,783.08x = 566,337,117,290,100,800 - Step 5: Solve for x
x = 566,337,117,290,100,800/868,802,783.08 - Step 6: Final answer
x = 651,859,234.71
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Double scale
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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.