Finding the Fourth Proportional to 10,050,427.90, 15,112,966.65 and 8,408,136.70
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Solution
The fourth proportional to 10,050,427.90, 15,112,966.65 and 8,408,136.70 is: 12,643,430.79
Step by Step Solution
- Step 1: Write the proportion equation
10,050,427.90 : 15,112,966.65 = 8,408,136.70 : x - Step 2: Convert to fraction form
10,050,427.90/15,112,966.65 = 8,408,136.70/x - Step 3: Cross multiply
10,050,427.90x = 15,112,966.65 × 8,408,136.70 - Step 4: Simplify right side
10,050,427.90x = 127,071,889,535,741.05 - Step 5: Solve for x
x = 127,071,889,535,741.05/10,050,427.90 - Step 6: Final answer
x = 12,643,430.79
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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.