Finding the Fourth Proportional to 81,932,219.46, 122,812,482.42 and 38,176,903.98
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Solution
The fourth proportional to 81,932,219.46, 122,812,482.42 and 38,176,903.98 is: 57,225,355.05
Step by Step Solution
- Step 1: Write the proportion equation
81,932,219.46 : 122,812,482.42 = 38,176,903.98 : x - Step 2: Convert to fraction form
81,932,219.46/122,812,482.42 = 38,176,903.98/x - Step 3: Cross multiply
81,932,219.46x = 122,812,482.42 × 38,176,903.98 - Step 4: Simplify right side
81,932,219.46x = 4,688,600,348,893,778 - Step 5: Solve for x
x = 4,688,600,348,893,778/81,932,219.46 - Step 6: Final answer
x = 57,225,355.05
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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.