Finding the Fourth Proportional to 253,258,335.20, 379,887,502.80 and 239,149,560.80
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Solution
The fourth proportional to 253,258,335.20, 379,887,502.80 and 239,149,560.80 is: 358,724,341.20
Step by Step Solution
- Step 1: Write the proportion equation
253,258,335.20 : 379,887,502.80 = 239,149,560.80 : x - Step 2: Convert to fraction form
253,258,335.20/379,887,502.80 = 239,149,560.80/x - Step 3: Cross multiply
253,258,335.20x = 379,887,502.80 × 239,149,560.80 - Step 4: Simplify right side
253,258,335.20x = 90,849,929,448,028,784 - Step 5: Solve for x
x = 90,849,929,448,028,784/253,258,335.20 - Step 6: Final answer
x = 358,724,341.20
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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.