Finding the Fourth Proportional to 8,860,909.20, 13,291,363.80 and 2,129,323.20
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Solution
The fourth proportional to 8,860,909.20, 13,291,363.80 and 2,129,323.20 is: 3,193,984.80
Step by Step Solution
- Step 1: Write the proportion equation
8,860,909.20 : 13,291,363.80 = 2,129,323.20 : x - Step 2: Convert to fraction form
8,860,909.20/13,291,363.80 = 2,129,323.20/x - Step 3: Cross multiply
8,860,909.20x = 13,291,363.80 × 2,129,323.20 - Step 4: Simplify right side
8,860,909.20x = 28,301,609,298,980.16 - Step 5: Solve for x
x = 28,301,609,298,980.16/8,860,909.20 - Step 6: Final answer
x = 3,193,984.80
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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.