Finding the Fourth Proportional to 143,134,449.86, 214,701,674.80 and 120,963,518.66
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Solution
The fourth proportional to 143,134,449.86, 214,701,674.80 and 120,963,518.66 is: 181,445,278.00
Step by Step Solution
- Step 1: Write the proportion equation
143,134,449.86 : 214,701,674.80 = 120,963,518.66 : x - Step 2: Convert to fraction form
143,134,449.86/214,701,674.80 = 120,963,518.66/x - Step 3: Cross multiply
143,134,449.86x = 214,701,674.80 × 120,963,518.66 - Step 4: Simplify right side
143,134,449.86x = 25,971,070,046,003,052 - Step 5: Solve for x
x = 25,971,070,046,003,052/143,134,449.86 - Step 6: Final answer
x = 181,445,278.00
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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.