Finding the Fourth Proportional to 7,639,152,721.44, 10,542,031,241.66 and 4,251,989,094.88
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Solution
The fourth proportional to 7,639,152,721.44, 10,542,031,241.66 and 4,251,989,094.88 is: 5,867,745,221.48
Step by Step Solution
- Step 1: Write the proportion equation
7,639,152,721.44 : 10,542,031,241.66 = 4,251,989,094.88 : x - Step 2: Convert to fraction form
7,639,152,721.44/10,542,031,241.66 = 4,251,989,094.88/x - Step 3: Cross multiply
7,639,152,721.44x = 10,542,031,241.66 × 4,251,989,094.88 - Step 4: Simplify right side
7,639,152,721.44x = 44,824,601,877,422,587,904 - Step 5: Solve for x
x = 44,824,601,877,422,587,904/7,639,152,721.44 - Step 6: Final answer
x = 5,867,745,221.48
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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.