Finding the Fourth Proportional to 19,445,131.13, 26,803,114.95 and 13,163,677.70
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Solution
The fourth proportional to 19,445,131.13, 26,803,114.95 and 13,163,677.70 is: 18,144,776.92
Step by Step Solution
- Step 1: Write the proportion equation
19,445,131.13 : 26,803,114.95 = 13,163,677.70 : x - Step 2: Convert to fraction form
19,445,131.13/26,803,114.95 = 13,163,677.70/x - Step 3: Cross multiply
19,445,131.13x = 26,803,114.95 × 13,163,677.70 - Step 4: Simplify right side
19,445,131.13x = 352,827,566,548,570.19 - Step 5: Solve for x
x = 352,827,566,548,570.19/19,445,131.13 - Step 6: Final answer
x = 18,144,776.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.