Finding the Fourth Proportional to 781,067,959.44, 1,077,802,541.16 and 463,473,476.70
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Solution
The fourth proportional to 781,067,959.44, 1,077,802,541.16 and 463,473,476.70 is: 639,551,123.45
Step by Step Solution
- Step 1: Write the proportion equation
781,067,959.44 : 1,077,802,541.16 = 463,473,476.70 : x - Step 2: Convert to fraction form
781,067,959.44/1,077,802,541.16 = 463,473,476.70/x - Step 3: Cross multiply
781,067,959.44x = 1,077,802,541.16 × 463,473,476.70 - Step 4: Simplify right side
781,067,959.44x = 499,532,890,947,520,064 - Step 5: Solve for x
x = 499,532,890,947,520,064/781,067,959.44 - Step 6: Final answer
x = 639,551,123.45
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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.