Finding the Fourth Proportional to 148,492,648.04, 204,193,014.35 and 128,879,380.53
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Solution
The fourth proportional to 148,492,648.04, 204,193,014.35 and 128,879,380.53 is: 177,222,707.96
Step by Step Solution
- Step 1: Write the proportion equation
148,492,648.04 : 204,193,014.35 = 128,879,380.53 : x - Step 2: Convert to fraction form
148,492,648.04/204,193,014.35 = 128,879,380.53/x - Step 3: Cross multiply
148,492,648.04x = 204,193,014.35 × 128,879,380.53 - Step 4: Simplify right side
148,492,648.04x = 26,316,269,197,337,004 - Step 5: Solve for x
x = 26,316,269,197,337,004/148,492,648.04 - Step 6: Final answer
x = 177,222,707.96
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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.