Finding the Fourth Proportional to 392,472,867.93, 541,588,154.09 and 216,251,001.74
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Solution
The fourth proportional to 392,472,867.93, 541,588,154.09 and 216,251,001.74 is: 298,412,936.07
Step by Step Solution
- Step 1: Write the proportion equation
392,472,867.93 : 541,588,154.09 = 216,251,001.74 : x - Step 2: Convert to fraction form
392,472,867.93/541,588,154.09 = 216,251,001.74/x - Step 3: Cross multiply
392,472,867.93x = 541,588,154.09 × 216,251,001.74 - Step 4: Simplify right side
392,472,867.93x = 117,118,980,848,690,800 - Step 5: Solve for x
x = 117,118,980,848,690,800/392,472,867.93 - Step 6: Final answer
x = 298,412,936.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.