Finding the Fourth Proportional to 208,049,848.01, 286,999,939.35 and 128,639,525.02
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Solution
The fourth proportional to 208,049,848.01, 286,999,939.35 and 128,639,525.02 is: 177,455,240.81
Step by Step Solution
- Step 1: Write the proportion equation
208,049,848.01 : 286,999,939.35 = 128,639,525.02 : x - Step 2: Convert to fraction form
208,049,848.01/286,999,939.35 = 128,639,525.02/x - Step 3: Cross multiply
208,049,848.01x = 286,999,939.35 × 128,639,525.02 - Step 4: Simplify right side
208,049,848.01x = 36,919,535,878,035,312 - Step 5: Solve for x
x = 36,919,535,878,035,312/208,049,848.01 - Step 6: Final answer
x = 177,455,240.81
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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.