Finding the Fourth Proportional to 12,963,781.07, 19,442,491.94 and 6,140,107.79
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Solution
The fourth proportional to 12,963,781.07, 19,442,491.94 and 6,140,107.79 is: 9,208,655.68
Step by Step Solution
- Step 1: Write the proportion equation
12,963,781.07 : 19,442,491.94 = 6,140,107.79 : x - Step 2: Convert to fraction form
12,963,781.07/19,442,491.94 = 6,140,107.79/x - Step 3: Cross multiply
12,963,781.07x = 19,442,491.94 × 6,140,107.79 - Step 4: Simplify right side
12,963,781.07x = 119,378,996,089,893.20 - Step 5: Solve for x
x = 119,378,996,089,893.20/12,963,781.07 - Step 6: Final answer
x = 9,208,655.68
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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.