Finding the Fourth Proportional to 13,604,518.62, 18,774,235.79 and 7,492,947.12
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Solution
The fourth proportional to 13,604,518.62, 18,774,235.79 and 7,492,947.12 is: 10,340,267.08
Step by Step Solution
- Step 1: Write the proportion equation
13,604,518.62 : 18,774,235.79 = 7,492,947.12 : x - Step 2: Convert to fraction form
13,604,518.62/18,774,235.79 = 7,492,947.12/x - Step 3: Cross multiply
13,604,518.62x = 18,774,235.79 × 7,492,947.12 - Step 4: Simplify right side
13,604,518.62x = 140,674,355,983,515.25 - Step 5: Solve for x
x = 140,674,355,983,515.25/13,604,518.62 - Step 6: Final answer
x = 10,340,267.08
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1.5x scale
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.