Finding the Fourth Proportional to 7,977,332.80, 11,952,002.40 and 6,549,659.20
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Solution
The fourth proportional to 7,977,332.80, 11,952,002.40 and 6,549,659.20 is: 9,812,996.96
Step by Step Solution
- Step 1: Write the proportion equation
7,977,332.80 : 11,952,002.40 = 6,549,659.20 : x - Step 2: Convert to fraction form
7,977,332.80/11,952,002.40 = 6,549,659.20/x - Step 3: Cross multiply
7,977,332.80x = 11,952,002.40 × 6,549,659.20 - Step 4: Simplify right side
7,977,332.80x = 78,281,542,477,582.08 - Step 5: Solve for x
x = 78,281,542,477,582.08/7,977,332.80 - Step 6: Final answer
x = 9,812,996.96
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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.