Finding the Fourth Proportional to 353,301,905.70, 487,602,393.57 and 202,653,336.42
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Solution
The fourth proportional to 353,301,905.70, 487,602,393.57 and 202,653,336.42 is: 279,687,854.24
Step by Step Solution
- Step 1: Write the proportion equation
353,301,905.70 : 487,602,393.57 = 202,653,336.42 : x - Step 2: Convert to fraction form
353,301,905.70/487,602,393.57 = 202,653,336.42/x - Step 3: Cross multiply
353,301,905.70x = 487,602,393.57 × 202,653,336.42 - Step 4: Simplify right side
353,301,905.70x = 98,814,251,903,338,448 - Step 5: Solve for x
x = 98,814,251,903,338,448/353,301,905.70 - Step 6: Final answer
x = 279,687,854.24
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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.