Finding the Fourth Proportional to 11,376,842.24, 15,700,191.20 and 6,220,209.76
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Solution
The fourth proportional to 11,376,842.24, 15,700,191.20 and 6,220,209.76 is: 8,583,970.88
Step by Step Solution
- Step 1: Write the proportion equation
11,376,842.24 : 15,700,191.20 = 6,220,209.76 : x - Step 2: Convert to fraction form
11,376,842.24/15,700,191.20 = 6,220,209.76/x - Step 3: Cross multiply
11,376,842.24x = 15,700,191.20 × 6,220,209.76 - Step 4: Simplify right side
11,376,842.24x = 97,658,482,536,106.11 - Step 5: Solve for x
x = 97,658,482,536,106.11/11,376,842.24 - Step 6: Final answer
x = 8,583,970.88
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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.