Finding the Fourth Proportional to 69,871,809.24, 96,423,479.19 and 40,520,544.21
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Solution
The fourth proportional to 69,871,809.24, 96,423,479.19 and 40,520,544.21 is: 55,918,572.80
Step by Step Solution
- Step 1: Write the proportion equation
69,871,809.24 : 96,423,479.19 = 40,520,544.21 : x - Step 2: Convert to fraction form
69,871,809.24/96,423,479.19 = 40,520,544.21/x - Step 3: Cross multiply
69,871,809.24x = 96,423,479.19 × 40,520,544.21 - Step 4: Simplify right side
69,871,809.24x = 3,907,131,851,400,410 - Step 5: Solve for x
x = 3,907,131,851,400,410/69,871,809.24 - Step 6: Final answer
x = 55,918,572.80
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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.