Finding the Fourth Proportional to 153,587,040.87, 211,952,126.84 and 83,972,501.79
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Solution
The fourth proportional to 153,587,040.87, 211,952,126.84 and 83,972,501.79 is: 115,883,151.66
Step by Step Solution
- Step 1: Write the proportion equation
153,587,040.87 : 211,952,126.84 = 83,972,501.79 : x - Step 2: Convert to fraction form
153,587,040.87/211,952,126.84 = 83,972,501.79/x - Step 3: Cross multiply
153,587,040.87x = 211,952,126.84 × 83,972,501.79 - Step 4: Simplify right side
153,587,040.87x = 17,798,150,350,046,346 - Step 5: Solve for x
x = 17,798,150,350,046,346/153,587,040.87 - Step 6: Final answer
x = 115,883,151.66
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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.