Finding the Fourth Proportional to 612,440,614.12, 845,169,384.30 and 348,124,226.44
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Solution
The fourth proportional to 612,440,614.12, 845,169,384.30 and 348,124,226.44 is: 480,412,192.36
Step by Step Solution
- Step 1: Write the proportion equation
612,440,614.12 : 845,169,384.30 = 348,124,226.44 : x - Step 2: Convert to fraction form
612,440,614.12/845,169,384.30 = 348,124,226.44/x - Step 3: Cross multiply
612,440,614.12x = 845,169,384.30 × 348,124,226.44 - Step 4: Simplify right side
612,440,614.12x = 294,223,938,120,208,576 - Step 5: Solve for x
x = 294,223,938,120,208,576/612,440,614.12 - Step 6: Final answer
x = 480,412,192.36
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1.5x scale
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.