Finding the Fourth Proportional to 90,276,798.58, 124,579,873.73 and 53,109,471.99
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Solution
The fourth proportional to 90,276,798.58, 124,579,873.73 and 53,109,471.99 is: 73,289,831.04
Step by Step Solution
- Step 1: Write the proportion equation
90,276,798.58 : 124,579,873.73 = 53,109,471.99 : x - Step 2: Convert to fraction form
90,276,798.58/124,579,873.73 = 53,109,471.99/x - Step 3: Cross multiply
90,276,798.58x = 124,579,873.73 × 53,109,471.99 - Step 4: Simplify right side
90,276,798.58x = 6,616,371,314,981,120 - Step 5: Solve for x
x = 6,616,371,314,981,120/90,276,798.58 - Step 6: Final answer
x = 73,289,831.04
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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.