Finding the Fourth Proportional to 22,445,265.12, 30,974,447.30 and 12,131,988.18
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Solution
The fourth proportional to 22,445,265.12, 30,974,447.30 and 12,131,988.18 is: 16,742,133.65
Step by Step Solution
- Step 1: Write the proportion equation
22,445,265.12 : 30,974,447.30 = 12,131,988.18 : x - Step 2: Convert to fraction form
22,445,265.12/30,974,447.30 = 12,131,988.18/x - Step 3: Cross multiply
22,445,265.12x = 30,974,447.30 × 12,131,988.18 - Step 4: Simplify right side
22,445,265.12x = 375,781,628,464,973 - Step 5: Solve for x
x = 375,781,628,464,973/22,445,265.12 - Step 6: Final answer
x = 16,742,133.65
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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.