Finding the Fourth Proportional to 13,146,781.98, 19,809,909.36 and 10,803,127.17
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Solution
The fourth proportional to 13,146,781.98, 19,809,909.36 and 10,803,127.17 is: 16,278,429.99
Step by Step Solution
- Step 1: Write the proportion equation
13,146,781.98 : 19,809,909.36 = 10,803,127.17 : x - Step 2: Convert to fraction form
13,146,781.98/19,809,909.36 = 10,803,127.17/x - Step 3: Cross multiply
13,146,781.98x = 19,809,909.36 × 10,803,127.17 - Step 4: Simplify right side
13,146,781.98x = 214,008,970,042,253.31 - Step 5: Solve for x
x = 214,008,970,042,253.31/13,146,781.98 - Step 6: Final answer
x = 16,278,429.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.