Finding the Fourth Proportional to 395,201,930.63, 545,199,816.65 and 238,518,952.07
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Solution
The fourth proportional to 395,201,930.63, 545,199,816.65 and 238,518,952.07 is: 329,048,212.71
Step by Step Solution
- Step 1: Write the proportion equation
395,201,930.63 : 545,199,816.65 = 238,518,952.07 : x - Step 2: Convert to fraction form
395,201,930.63/545,199,816.65 = 238,518,952.07/x - Step 3: Cross multiply
395,201,930.63x = 545,199,816.65 × 238,518,952.07 - Step 4: Simplify right side
395,201,930.63x = 130,040,488,932,195,536 - Step 5: Solve for x
x = 130,040,488,932,195,536/395,201,930.63 - Step 6: Final answer
x = 329,048,212.71
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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.