Finding the Fourth Proportional to 87,895,384.80, 131,577,656.40 and 77,278,552.80
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Solution
The fourth proportional to 87,895,384.80, 131,577,656.40 and 77,278,552.80 is: 115,684,468.42
Step by Step Solution
- Step 1: Write the proportion equation
87,895,384.80 : 131,577,656.40 = 77,278,552.80 : x - Step 2: Convert to fraction form
87,895,384.80/131,577,656.40 = 77,278,552.80/x - Step 3: Cross multiply
87,895,384.80x = 131,577,656.40 × 77,278,552.80 - Step 4: Simplify right side
87,895,384.80x = 10,168,130,867,407,658 - Step 5: Solve for x
x = 10,168,130,867,407,658/87,895,384.80 - Step 6: Final answer
x = 115,684,468.42
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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.