Finding the Fourth Proportional to 92,689,770.60, 139,034,655.90 and 51,875,101.80
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Solution
The fourth proportional to 92,689,770.60, 139,034,655.90 and 51,875,101.80 is: 77,812,652.70
Step by Step Solution
- Step 1: Write the proportion equation
92,689,770.60 : 139,034,655.90 = 51,875,101.80 : x - Step 2: Convert to fraction form
92,689,770.60/139,034,655.90 = 51,875,101.80/x - Step 3: Cross multiply
92,689,770.60x = 139,034,655.90 × 51,875,101.80 - Step 4: Simplify right side
92,689,770.60x = 7,212,436,928,540,471 - Step 5: Solve for x
x = 7,212,436,928,540,471/92,689,770.60 - Step 6: Final answer
x = 77,812,652.70
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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.