Finding the Fourth Proportional to 122,306,847.36, 168,781,313.66 and 66,550,386.80
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Solution
The fourth proportional to 122,306,847.36, 168,781,313.66 and 66,550,386.80 is: 91,838,371.69
Step by Step Solution
- Step 1: Write the proportion equation
122,306,847.36 : 168,781,313.66 = 66,550,386.80 : x - Step 2: Convert to fraction form
122,306,847.36/168,781,313.66 = 66,550,386.80/x - Step 3: Cross multiply
122,306,847.36x = 168,781,313.66 × 66,550,386.80 - Step 4: Simplify right side
122,306,847.36x = 11,232,461,708,685,122 - Step 5: Solve for x
x = 11,232,461,708,685,122/122,306,847.36 - Step 6: Final answer
x = 91,838,371.69
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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.