Finding the Fourth Proportional to 106,286,869.60, 159,430,304.40 and 67,991,624.80
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Solution
The fourth proportional to 106,286,869.60, 159,430,304.40 and 67,991,624.80 is: 101,987,437.20
Step by Step Solution
- Step 1: Write the proportion equation
106,286,869.60 : 159,430,304.40 = 67,991,624.80 : x - Step 2: Convert to fraction form
106,286,869.60/159,430,304.40 = 67,991,624.80/x - Step 3: Cross multiply
106,286,869.60x = 159,430,304.40 × 67,991,624.80 - Step 4: Simplify right side
106,286,869.60x = 10,839,925,438,514,590 - Step 5: Solve for x
x = 10,839,925,438,514,590/106,286,869.60 - Step 6: Final answer
x = 101,987,437.20
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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.