Finding the Fourth Proportional to 155,990,043.11, 215,490,484.95 and 124,586,862.23
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Solution
The fourth proportional to 155,990,043.11, 215,490,484.95 and 124,586,862.23 is: 172,108,955.32
Step by Step Solution
- Step 1: Write the proportion equation
155,990,043.11 : 215,490,484.95 = 124,586,862.23 : x - Step 2: Convert to fraction form
155,990,043.11/215,490,484.95 = 124,586,862.23/x - Step 3: Cross multiply
155,990,043.11x = 215,490,484.95 × 124,586,862.23 - Step 4: Simplify right side
155,990,043.11x = 26,847,283,360,341,536 - Step 5: Solve for x
x = 26,847,283,360,341,536/155,990,043.11 - Step 6: Final answer
x = 172,108,955.32
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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.