Finding the Fourth Proportional to 80,935,097.80, 121,402,646.70 and 72,432,041.80
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Solution
The fourth proportional to 80,935,097.80, 121,402,646.70 and 72,432,041.80 is: 108,648,062.70
Step by Step Solution
- Step 1: Write the proportion equation
80,935,097.80 : 121,402,646.70 = 72,432,041.80 : x - Step 2: Convert to fraction form
80,935,097.80/121,402,646.70 = 72,432,041.80/x - Step 3: Cross multiply
80,935,097.80x = 121,402,646.70 × 72,432,041.80 - Step 4: Simplify right side
80,935,097.80x = 8,793,441,580,405,032 - Step 5: Solve for x
x = 8,793,441,580,405,032/80,935,097.80 - Step 6: Final answer
x = 108,648,062.70
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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.