Finding the Fourth Proportional to 172,479,239.60, 258,844,830.60 and 121,460,903.60
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Solution
The fourth proportional to 172,479,239.60, 258,844,830.60 and 121,460,903.60 is: 182,280,065.07
Step by Step Solution
- Step 1: Write the proportion equation
172,479,239.60 : 258,844,830.60 = 121,460,903.60 : x - Step 2: Convert to fraction form
172,479,239.60/258,844,830.60 = 121,460,903.60/x - Step 3: Cross multiply
172,479,239.60x = 258,844,830.60 × 121,460,903.60 - Step 4: Simplify right side
172,479,239.60x = 31,439,527,016,864,928 - Step 5: Solve for x
x = 31,439,527,016,864,928/172,479,239.60 - Step 6: Final answer
x = 182,280,065.07
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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.