Finding the Fourth Proportional to 221,864,428.32, 306,170,641.00 and 122,745,885.09
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Solution
The fourth proportional to 221,864,428.32, 306,170,641.00 and 122,745,885.09 is: 169,388,065.51
Step by Step Solution
- Step 1: Write the proportion equation
221,864,428.32 : 306,170,641.00 = 122,745,885.09 : x - Step 2: Convert to fraction form
221,864,428.32/306,170,641.00 = 122,745,885.09/x - Step 3: Cross multiply
221,864,428.32x = 306,170,641.00 × 122,745,885.09 - Step 4: Simplify right side
221,864,428.32x = 37,581,186,317,639,584 - Step 5: Solve for x
x = 37,581,186,317,639,584/221,864,428.32 - Step 6: Final answer
x = 169,388,065.51
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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.