Finding the Fourth Proportional to 111,497,794.95, 153,871,320.84 and 76,289,445.99
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Solution
The fourth proportional to 111,497,794.95, 153,871,320.84 and 76,289,445.99 is: 105,282,421.29
Step by Step Solution
- Step 1: Write the proportion equation
111,497,794.95 : 153,871,320.84 = 76,289,445.99 : x - Step 2: Convert to fraction form
111,497,794.95/153,871,320.84 = 76,289,445.99/x - Step 3: Cross multiply
111,497,794.95x = 153,871,320.84 × 76,289,445.99 - Step 4: Simplify right side
111,497,794.95x = 11,738,757,820,633,140 - Step 5: Solve for x
x = 11,738,757,820,633,140/111,497,794.95 - Step 6: Final answer
x = 105,282,421.29
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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.