Finding the Fourth Proportional to 19,136,713.76, 28,705,070.64 and 13,134,885.92
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Solution
The fourth proportional to 19,136,713.76, 28,705,070.64 and 13,134,885.92 is: 19,702,328.88
Step by Step Solution
- Step 1: Write the proportion equation
19,136,713.76 : 28,705,070.64 = 13,134,885.92 : x - Step 2: Convert to fraction form
19,136,713.76/28,705,070.64 = 13,134,885.92/x - Step 3: Cross multiply
19,136,713.76x = 28,705,070.64 × 13,134,885.92 - Step 4: Simplify right side
19,136,713.76x = 377,037,828,181,941.38 - Step 5: Solve for x
x = 377,037,828,181,941.38/19,136,713.76 - Step 6: Final answer
x = 19,702,328.88
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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.