Finding the Fourth Proportional to 153,842,551.80, 230,763,827.70 and 138,726,007.80
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Solution
The fourth proportional to 153,842,551.80, 230,763,827.70 and 138,726,007.80 is: 208,089,011.70
Step by Step Solution
- Step 1: Write the proportion equation
153,842,551.80 : 230,763,827.70 = 138,726,007.80 : x - Step 2: Convert to fraction form
153,842,551.80/230,763,827.70 = 138,726,007.80/x - Step 3: Cross multiply
153,842,551.80x = 230,763,827.70 × 138,726,007.80 - Step 4: Simplify right side
153,842,551.80x = 32,012,944,561,468,056 - Step 5: Solve for x
x = 32,012,944,561,468,056/153,842,551.80 - Step 6: Final answer
x = 208,089,011.70
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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.