Finding the Fourth Proportional to 97,724,804.80, 146,587,207.20 and 91,678,187.20
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Solution
The fourth proportional to 97,724,804.80, 146,587,207.20 and 91,678,187.20 is: 137,517,280.80
Step by Step Solution
- Step 1: Write the proportion equation
97,724,804.80 : 146,587,207.20 = 91,678,187.20 : x - Step 2: Convert to fraction form
97,724,804.80/146,587,207.20 = 91,678,187.20/x - Step 3: Cross multiply
97,724,804.80x = 146,587,207.20 × 91,678,187.20 - Step 4: Simplify right side
97,724,804.80x = 13,438,849,422,806,788 - Step 5: Solve for x
x = 13,438,849,422,806,788/97,724,804.80 - Step 6: Final answer
x = 137,517,280.80
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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.