Finding the Fourth Proportional to 19,570,125.74, 27,020,284.29 and 12,231,257.63
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Solution
The fourth proportional to 19,570,125.74, 27,020,284.29 and 12,231,257.63 is: 16,887,579.71
Step by Step Solution
- Step 1: Write the proportion equation
19,570,125.74 : 27,020,284.29 = 12,231,257.63 : x - Step 2: Convert to fraction form
19,570,125.74/27,020,284.29 = 12,231,257.63/x - Step 3: Cross multiply
19,570,125.74x = 27,020,284.29 × 12,231,257.63 - Step 4: Simplify right side
19,570,125.74x = 330,492,058,251,730.19 - Step 5: Solve for x
x = 330,492,058,251,730.19/19,570,125.74 - Step 6: Final answer
x = 16,887,579.71
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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.