Finding the Fourth Proportional to 42,070,911.12, 63,126,352.11 and 29,136,965.79
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Solution
The fourth proportional to 42,070,911.12, 63,126,352.11 and 29,136,965.79 is: 43,719,289.95
Step by Step Solution
- Step 1: Write the proportion equation
42,070,911.12 : 63,126,352.11 = 29,136,965.79 : x - Step 2: Convert to fraction form
42,070,911.12/63,126,352.11 = 29,136,965.79/x - Step 3: Cross multiply
42,070,911.12x = 63,126,352.11 × 29,136,965.79 - Step 4: Simplify right side
42,070,911.12x = 1,839,310,361,876,564.25 - Step 5: Solve for x
x = 1,839,310,361,876,564.25/42,070,911.12 - Step 6: Final answer
x = 43,719,289.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.