Finding the Fourth Proportional to 121,248,658.08, 167,325,555.60 and 66,247,927.20
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Solution
The fourth proportional to 121,248,658.08, 167,325,555.60 and 66,247,927.20 is: 91,423,454.92
Step by Step Solution
- Step 1: Write the proportion equation
121,248,658.08 : 167,325,555.60 = 66,247,927.20 : x - Step 2: Convert to fraction form
121,248,658.08/167,325,555.60 = 66,247,927.20/x - Step 3: Cross multiply
121,248,658.08x = 167,325,555.60 × 66,247,927.20 - Step 4: Simplify right side
121,248,658.08x = 11,084,971,226,088,352 - Step 5: Solve for x
x = 11,084,971,226,088,352/121,248,658.08 - Step 6: Final answer
x = 91,423,454.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.