Finding the Fourth Proportional to 612,440,615.12, 845,169,385.68 and 348,124,227.44
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Solution
The fourth proportional to 612,440,615.12, 845,169,385.68 and 348,124,227.44 is: 480,412,193.74
Step by Step Solution
- Step 1: Write the proportion equation
612,440,615.12 : 845,169,385.68 = 348,124,227.44 : x - Step 2: Convert to fraction form
612,440,615.12/845,169,385.68 = 348,124,227.44/x - Step 3: Cross multiply
612,440,615.12x = 845,169,385.68 × 348,124,227.44 - Step 4: Simplify right side
612,440,615.12x = 294,223,939,445,789,376 - Step 5: Solve for x
x = 294,223,939,445,789,376/612,440,615.12 - Step 6: Final answer
x = 480,412,193.74
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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.