Finding the Fourth Proportional to 165,006,021.60, 247,131,118.80 and 84,132,511.20
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Solution
The fourth proportional to 165,006,021.60, 247,131,118.80 and 84,132,511.20 is: 126,006,077.95
Step by Step Solution
- Step 1: Write the proportion equation
165,006,021.60 : 247,131,118.80 = 84,132,511.20 : x - Step 2: Convert to fraction form
165,006,021.60/247,131,118.80 = 84,132,511.20/x - Step 3: Cross multiply
165,006,021.60x = 247,131,118.80 × 84,132,511.20 - Step 4: Simplify right side
165,006,021.60x = 20,791,761,620,309,532 - Step 5: Solve for x
x = 20,791,761,620,309,532/165,006,021.60 - Step 6: Final answer
x = 126,006,077.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.