Finding the Fourth Proportional to 79,725,166.80, 119,587,750.20 and 68,246,041.20
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Solution
The fourth proportional to 79,725,166.80, 119,587,750.20 and 68,246,041.20 is: 102,369,061.80
Step by Step Solution
- Step 1: Write the proportion equation
79,725,166.80 : 119,587,750.20 = 68,246,041.20 : x - Step 2: Convert to fraction form
79,725,166.80/119,587,750.20 = 68,246,041.20/x - Step 3: Cross multiply
79,725,166.80x = 119,587,750.20 × 68,246,041.20 - Step 4: Simplify right side
79,725,166.80x = 8,161,390,527,164,509 - Step 5: Solve for x
x = 8,161,390,527,164,509/79,725,166.80 - Step 6: Final answer
x = 102,369,061.80
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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.