Finding the Fourth Proportional to 7,776,248.40, 11,664,372.60 and 4,920,901.20
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Solution
The fourth proportional to 7,776,248.40, 11,664,372.60 and 4,920,901.20 is: 7,381,351.80
Step by Step Solution
- Step 1: Write the proportion equation
7,776,248.40 : 11,664,372.60 = 4,920,901.20 : x - Step 2: Convert to fraction form
7,776,248.40/11,664,372.60 = 4,920,901.20/x - Step 3: Cross multiply
7,776,248.40x = 11,664,372.60 × 4,920,901.20 - Step 4: Simplify right side
7,776,248.40x = 57,399,225,124,587.12 - Step 5: Solve for x
x = 57,399,225,124,587.12/7,776,248.40 - Step 6: Final answer
x = 7,381,351.80
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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.