Finding the Fourth Proportional to 55,750,988.75, 76,905,370.88 and 51,805,396.08
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Solution
The fourth proportional to 55,750,988.75, 76,905,370.88 and 51,805,396.08 is: 71,462,646.47
Step by Step Solution
- Step 1: Write the proportion equation
55,750,988.75 : 76,905,370.88 = 51,805,396.08 : x - Step 2: Convert to fraction form
55,750,988.75/76,905,370.88 = 51,805,396.08/x - Step 3: Cross multiply
55,750,988.75x = 76,905,370.88 × 51,805,396.08 - Step 4: Simplify right side
55,750,988.75x = 3,984,113,199,117,698 - Step 5: Solve for x
x = 3,984,113,199,117,698/55,750,988.75 - Step 6: Final answer
x = 71,462,646.47
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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.