Finding the Fourth Proportional to 10,218,808.40, 15,303,312.57 and 6,758,439.95
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Solution
The fourth proportional to 10,218,808.40, 15,303,312.57 and 6,758,439.95 is: 10,121,191.73
Step by Step Solution
- Step 1: Write the proportion equation
10,218,808.40 : 15,303,312.57 = 6,758,439.95 : x - Step 2: Convert to fraction form
10,218,808.40/15,303,312.57 = 6,758,439.95/x - Step 3: Cross multiply
10,218,808.40x = 15,303,312.57 × 6,758,439.95 - Step 4: Simplify right side
10,218,808.40x = 103,426,518,979,930.25 - Step 5: Solve for x
x = 103,426,518,979,930.25/10,218,808.40 - Step 6: Final answer
x = 10,121,191.73
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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.