Finding the Fourth Proportional to 143,549,374.80, 215,067,454.20 and 87,359,998.80
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Solution
The fourth proportional to 143,549,374.80, 215,067,454.20 and 87,359,998.80 is: 130,883,833.99
Step by Step Solution
- Step 1: Write the proportion equation
143,549,374.80 : 215,067,454.20 = 87,359,998.80 : x - Step 2: Convert to fraction form
143,549,374.80/215,067,454.20 = 87,359,998.80/x - Step 3: Cross multiply
143,549,374.80x = 215,067,454.20 × 87,359,998.80 - Step 4: Simplify right side
143,549,374.80x = 18,788,292,540,831,052 - Step 5: Solve for x
x = 18,788,292,540,831,052/143,549,374.80 - Step 6: Final answer
x = 130,883,833.99
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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.