Finding the Fourth Proportional to 281,009,807.13, 387,798,124.95 and 153,848,364
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Solution
The fourth proportional to 281,009,807.13, 387,798,124.95 and 153,848,364 is: 212,313,255.88
Step by Step Solution
- Step 1: Write the proportion equation
281,009,807.13 : 387,798,124.95 = 153,848,364 : x - Step 2: Convert to fraction form
281,009,807.13/387,798,124.95 = 153,848,364/x - Step 3: Cross multiply
281,009,807.13x = 387,798,124.95 × 153,848,364 - Step 4: Simplify right side
281,009,807.13x = 59,662,107,085,825,080 - Step 5: Solve for x
x = 59,662,107,085,825,080/281,009,807.13 - Step 6: Final answer
x = 212,313,255.88
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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.