Finding the Fourth Proportional to 13,283,994.20, 19,925,991.30 and 12,087,267.80
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Solution
The fourth proportional to 13,283,994.20, 19,925,991.30 and 12,087,267.80 is: 18,130,901.70
Step by Step Solution
- Step 1: Write the proportion equation
13,283,994.20 : 19,925,991.30 = 12,087,267.80 : x - Step 2: Convert to fraction form
13,283,994.20/19,925,991.30 = 12,087,267.80/x - Step 3: Cross multiply
13,283,994.20x = 19,925,991.30 × 12,087,267.80 - Step 4: Simplify right side
13,283,994.20x = 240,850,793,023,570.16 - Step 5: Solve for x
x = 240,850,793,023,570.16/13,283,994.20 - Step 6: Final answer
x = 18,130,901.70
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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.