Finding the Fourth Proportional to 76,637,116.32, 115,006,445.28 and 42,117,624.96
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Solution
The fourth proportional to 76,637,116.32, 115,006,445.28 and 42,117,624.96 is: 63,204,339.66
Step by Step Solution
- Step 1: Write the proportion equation
76,637,116.32 : 115,006,445.28 = 42,117,624.96 : x - Step 2: Convert to fraction form
76,637,116.32/115,006,445.28 = 42,117,624.96/x - Step 3: Cross multiply
76,637,116.32x = 115,006,445.28 × 42,117,624.96 - Step 4: Simplify right side
76,637,116.32x = 4,843,798,330,285,802 - Step 5: Solve for x
x = 4,843,798,330,285,802/76,637,116.32 - Step 6: Final answer
x = 63,204,339.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.