Finding the Fourth Proportional to 71,077,498.65, 98,102,102.27 and 48,780,985.05
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Solution
The fourth proportional to 71,077,498.65, 98,102,102.27 and 48,780,985.05 is: 67,328,159.75
Step by Step Solution
- Step 1: Write the proportion equation
71,077,498.65 : 98,102,102.27 = 48,780,985.05 : x - Step 2: Convert to fraction form
71,077,498.65/98,102,102.27 = 48,780,985.05/x - Step 3: Cross multiply
71,077,498.65x = 98,102,102.27 × 48,780,985.05 - Step 4: Simplify right side
71,077,498.65x = 4,785,517,183,962,536 - Step 5: Solve for x
x = 4,785,517,183,962,536/71,077,498.65 - Step 6: Final answer
x = 67,328,159.75
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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.