Finding the Fourth Proportional to 281,606,053.08, 388,634,312.70 and 157,846,762.20
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Solution
The fourth proportional to 281,606,053.08, 388,634,312.70 and 157,846,762.20 is: 217,838,598.53
Step by Step Solution
- Step 1: Write the proportion equation
281,606,053.08 : 388,634,312.70 = 157,846,762.20 : x - Step 2: Convert to fraction form
281,606,053.08/388,634,312.70 = 157,846,762.20/x - Step 3: Cross multiply
281,606,053.08x = 388,634,312.70 × 157,846,762.20 - Step 4: Simplify right side
281,606,053.08x = 61,344,667,939,517,336 - Step 5: Solve for x
x = 61,344,667,939,517,336/281,606,053.08 - Step 6: Final answer
x = 217,838,598.53
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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.