Finding the Fourth Proportional to 143,342,412.71, 197,806,831.92 and 84,623,992.74
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Solution
The fourth proportional to 143,342,412.71, 197,806,831.92 and 84,623,992.74 is: 116,777,746.32
Step by Step Solution
- Step 1: Write the proportion equation
143,342,412.71 : 197,806,831.92 = 84,623,992.74 : x - Step 2: Convert to fraction form
143,342,412.71/197,806,831.92 = 84,623,992.74/x - Step 3: Cross multiply
143,342,412.71x = 197,806,831.92 × 84,623,992.74 - Step 4: Simplify right side
143,342,412.71x = 16,739,203,908,320,478 - Step 5: Solve for x
x = 16,739,203,908,320,478/143,342,412.71 - Step 6: Final answer
x = 116,777,746.32
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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.