Finding the Fourth Proportional to 13,291,277.70, 19,936,916.55 and 9,932,045.70
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Solution
The fourth proportional to 13,291,277.70, 19,936,916.55 and 9,932,045.70 is: 14,898,068.55
Step by Step Solution
- Step 1: Write the proportion equation
13,291,277.70 : 19,936,916.55 = 9,932,045.70 : x - Step 2: Convert to fraction form
13,291,277.70/19,936,916.55 = 9,932,045.70/x - Step 3: Cross multiply
13,291,277.70x = 19,936,916.55 × 9,932,045.70 - Step 4: Simplify right side
13,291,277.70x = 198,014,366,291,686.31 - Step 5: Solve for x
x = 198,014,366,291,686.31/13,291,277.70 - Step 6: Final answer
x = 14,898,068.55
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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.