Finding the Fourth Proportional to 216,862,731.12, 299,297,534.04 and 124,030,354.80
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Solution
The fourth proportional to 216,862,731.12, 299,297,534.04 and 124,030,354.80 is: 171,177,311.78
Step by Step Solution
- Step 1: Write the proportion equation
216,862,731.12 : 299,297,534.04 = 124,030,354.80 : x - Step 2: Convert to fraction form
216,862,731.12/299,297,534.04 = 124,030,354.80/x - Step 3: Cross multiply
216,862,731.12x = 299,297,534.04 × 124,030,354.80 - Step 4: Simplify right side
216,862,731.12x = 37,121,979,337,746,280 - Step 5: Solve for x
x = 37,121,979,337,746,280/216,862,731.12 - Step 6: Final answer
x = 171,177,311.78
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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.