Finding the Fourth Proportional to 70,986,825.18, 97,961,818.59 and 38,391,777.18
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Solution
The fourth proportional to 70,986,825.18, 97,961,818.59 and 38,391,777.18 is: 52,980,652.42
Step by Step Solution
- Step 1: Write the proportion equation
70,986,825.18 : 97,961,818.59 = 38,391,777.18 : x - Step 2: Convert to fraction form
70,986,825.18/97,961,818.59 = 38,391,777.18/x - Step 3: Cross multiply
70,986,825.18x = 97,961,818.59 × 38,391,777.18 - Step 4: Simplify right side
70,986,825.18x = 3,760,928,311,454,862 - Step 5: Solve for x
x = 3,760,928,311,454,862/70,986,825.18 - Step 6: Final answer
x = 52,980,652.42
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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.