Finding the Fourth Proportional to 134,185,601.70, 201,278,402.55 and 85,812,660.90
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Solution
The fourth proportional to 134,185,601.70, 201,278,402.55 and 85,812,660.90 is: 128,718,991.35
Step by Step Solution
- Step 1: Write the proportion equation
134,185,601.70 : 201,278,402.55 = 85,812,660.90 : x - Step 2: Convert to fraction form
134,185,601.70/201,278,402.55 = 85,812,660.90/x - Step 3: Cross multiply
134,185,601.70x = 201,278,402.55 × 85,812,660.90 - Step 4: Simplify right side
134,185,601.70x = 17,272,235,304,516,848 - Step 5: Solve for x
x = 17,272,235,304,516,848/134,185,601.70 - Step 6: Final answer
x = 128,718,991.35
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1.5x scale
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.