Finding the Fourth Proportional to 42,235,012.68, 58,254,207.26 and 38,761,548.20
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Solution
The fourth proportional to 42,235,012.68, 58,254,207.26 and 38,761,548.20 is: 53,463,302.58
Step by Step Solution
- Step 1: Write the proportion equation
42,235,012.68 : 58,254,207.26 = 38,761,548.20 : x - Step 2: Convert to fraction form
42,235,012.68/58,254,207.26 = 38,761,548.20/x - Step 3: Cross multiply
42,235,012.68x = 58,254,207.26 × 38,761,548.20 - Step 4: Simplify right side
42,235,012.68x = 2,258,023,262,561,280 - Step 5: Solve for x
x = 2,258,023,262,561,280/42,235,012.68 - Step 6: Final answer
x = 53,463,302.58
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1.5x scale
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.