Finding the Fourth Proportional to 159,437,331.81, 239,156,000.79 and 38,268,783.81
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Solution
The fourth proportional to 159,437,331.81, 239,156,000.79 and 38,268,783.81 is: 57,403,176.45
Step by Step Solution
- Step 1: Write the proportion equation
159,437,331.81 : 239,156,000.79 = 38,268,783.81 : x - Step 2: Convert to fraction form
159,437,331.81/239,156,000.79 = 38,268,783.81/x - Step 3: Cross multiply
159,437,331.81x = 239,156,000.79 × 38,268,783.81 - Step 4: Simplify right side
159,437,331.81x = 9,152,209,290,697,828 - Step 5: Solve for x
x = 9,152,209,290,697,828/159,437,331.81 - Step 6: Final answer
x = 57,403,176.45
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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.