Finding the Fourth Proportional to 69,069,801.84, 95,315,116.12 and 38,129,175.28
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Solution
The fourth proportional to 69,069,801.84, 95,315,116.12 and 38,129,175.28 is: 52,617,593.69
Step by Step Solution
- Step 1: Write the proportion equation
69,069,801.84 : 95,315,116.12 = 38,129,175.28 : x - Step 2: Convert to fraction form
69,069,801.84/95,315,116.12 = 38,129,175.28/x - Step 3: Cross multiply
69,069,801.84x = 95,315,116.12 × 38,129,175.28 - Step 4: Simplify right side
69,069,801.84x = 3,634,286,769,373,034 - Step 5: Solve for x
x = 3,634,286,769,373,034/69,069,801.84 - Step 6: Final answer
x = 52,617,593.69
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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.