Finding the Fourth Proportional to 8,317,215.20, 12,462,409.20 and 4,712,261.60
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Solution
The fourth proportional to 8,317,215.20, 12,462,409.20 and 4,712,261.60 is: 7,060,792.69
Step by Step Solution
- Step 1: Write the proportion equation
8,317,215.20 : 12,462,409.20 = 4,712,261.60 : x - Step 2: Convert to fraction form
8,317,215.20/12,462,409.20 = 4,712,261.60/x - Step 3: Cross multiply
8,317,215.20x = 12,462,409.20 × 4,712,261.60 - Step 4: Simplify right side
8,317,215.20x = 58,726,132,316,646.71 - Step 5: Solve for x
x = 58,726,132,316,646.71/8,317,215.20 - Step 6: Final answer
x = 7,060,792.69
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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.