Finding the Fourth Proportional to 122,908,018.01, 169,613,247.24 and 69,984,768.81
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Solution
The fourth proportional to 122,908,018.01, 169,613,247.24 and 69,984,768.81 is: 96,579,084.81
Step by Step Solution
- Step 1: Write the proportion equation
122,908,018.01 : 169,613,247.24 = 69,984,768.81 : x - Step 2: Convert to fraction form
122,908,018.01/169,613,247.24 = 69,984,768.81/x - Step 3: Cross multiply
122,908,018.01x = 169,613,247.24 × 69,984,768.81 - Step 4: Simplify right side
122,908,018.01x = 11,870,343,895,204,772 - Step 5: Solve for x
x = 11,870,343,895,204,772/122,908,018.01 - Step 6: Final answer
x = 96,579,084.81
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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.