Finding the Fourth Proportional to 121,562,924.36, 167,756,887.42 and 65,808,343.24
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Solution
The fourth proportional to 121,562,924.36, 167,756,887.42 and 65,808,343.24 is: 90,815,541.71
Step by Step Solution
- Step 1: Write the proportion equation
121,562,924.36 : 167,756,887.42 = 65,808,343.24 : x - Step 2: Convert to fraction form
121,562,924.36/167,756,887.42 = 65,808,343.24/x - Step 3: Cross multiply
121,562,924.36x = 167,756,887.42 × 65,808,343.24 - Step 4: Simplify right side
121,562,924.36x = 11,039,802,828,209,398 - Step 5: Solve for x
x = 11,039,802,828,209,398/121,562,924.36 - Step 6: Final answer
x = 90,815,541.71
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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.