Finding the Fourth Proportional to 422,167,669.81, 633,331,055.62 and 159,930,765.56
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Solution
The fourth proportional to 422,167,669.81, 633,331,055.62 and 159,930,765.56 is: 239,926,284.80
Step by Step Solution
- Step 1: Write the proportion equation
422,167,669.81 : 633,331,055.62 = 159,930,765.56 : x - Step 2: Convert to fraction form
422,167,669.81/633,331,055.62 = 159,930,765.56/x - Step 3: Cross multiply
422,167,669.81x = 633,331,055.62 × 159,930,765.56 - Step 4: Simplify right side
422,167,669.81x = 101,289,120,580,012,784 - Step 5: Solve for x
x = 101,289,120,580,012,784/422,167,669.81 - Step 6: Final answer
x = 239,926,284.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.