Finding the Fourth Proportional to 57,937,642.46, 79,952,660.74 and 31,475,312.42
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Solution
The fourth proportional to 57,937,642.46, 79,952,660.74 and 31,475,312.42 is: 43,435,232.59
Step by Step Solution
- Step 1: Write the proportion equation
57,937,642.46 : 79,952,660.74 = 31,475,312.42 : x - Step 2: Convert to fraction form
57,937,642.46/79,952,660.74 = 31,475,312.42/x - Step 3: Cross multiply
57,937,642.46x = 79,952,660.74 × 31,475,312.42 - Step 4: Simplify right side
57,937,642.46x = 2,516,534,975,722,961.50 - Step 5: Solve for x
x = 2,516,534,975,722,961.50/57,937,642.46 - Step 6: Final answer
x = 43,435,232.59
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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.