Finding the Fourth Proportional to 13,124,136.60, 19,686,204.90 and 8,316,235.80
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Solution
The fourth proportional to 13,124,136.60, 19,686,204.90 and 8,316,235.80 is: 12,474,353.70
Step by Step Solution
- Step 1: Write the proportion equation
13,124,136.60 : 19,686,204.90 = 8,316,235.80 : x - Step 2: Convert to fraction form
13,124,136.60/19,686,204.90 = 8,316,235.80/x - Step 3: Cross multiply
13,124,136.60x = 19,686,204.90 × 8,316,235.80 - Step 4: Simplify right side
13,124,136.60x = 163,715,121,955,515.41 - Step 5: Solve for x
x = 163,715,121,955,515.41/13,124,136.60 - Step 6: Final answer
x = 12,474,353.70
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1.5x scale
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.