Finding the Fourth Proportional to 157,943,806.39, 237,018,010.16 and 85,210,791.13
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Solution
The fourth proportional to 157,943,806.39, 237,018,010.16 and 85,210,791.13 is: 127,871,377.92
Step by Step Solution
- Step 1: Write the proportion equation
157,943,806.39 : 237,018,010.16 = 85,210,791.13 : x - Step 2: Convert to fraction form
157,943,806.39/237,018,010.16 = 85,210,791.13/x - Step 3: Cross multiply
157,943,806.39x = 237,018,010.16 × 85,210,791.13 - Step 4: Simplify right side
157,943,806.39x = 20,196,492,157,791,976 - Step 5: Solve for x
x = 20,196,492,157,791,976/157,943,806.39 - Step 6: Final answer
x = 127,871,377.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.