Finding the Fourth Proportional to 221,153,422.80, 331,730,134.20 and 98,331,502.80
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Solution
The fourth proportional to 221,153,422.80, 331,730,134.20 and 98,331,502.80 is: 147,497,254.20
Step by Step Solution
- Step 1: Write the proportion equation
221,153,422.80 : 331,730,134.20 = 98,331,502.80 : x - Step 2: Convert to fraction form
221,153,422.80/331,730,134.20 = 98,331,502.80/x - Step 3: Cross multiply
221,153,422.80x = 331,730,134.20 × 98,331,502.80 - Step 4: Simplify right side
221,153,422.80x = 32,619,522,619,931,672 - Step 5: Solve for x
x = 32,619,522,619,931,672/221,153,422.80 - Step 6: Final answer
x = 147,497,254.20
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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.