Finding the Fourth Proportional to 409,900,643.10, 614,850,964.65 and 370,361,432.70
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Solution
The fourth proportional to 409,900,643.10, 614,850,964.65 and 370,361,432.70 is: 555,542,149.05
Step by Step Solution
- Step 1: Write the proportion equation
409,900,643.10 : 614,850,964.65 = 370,361,432.70 : x - Step 2: Convert to fraction form
409,900,643.10/614,850,964.65 = 370,361,432.70/x - Step 3: Cross multiply
409,900,643.10x = 614,850,964.65 × 370,361,432.70 - Step 4: Simplify right side
409,900,643.10x = 227,717,084,164,751,040 - Step 5: Solve for x
x = 227,717,084,164,751,040/409,900,643.10 - Step 6: Final answer
x = 555,542,149.05
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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.