Finding the Fourth Proportional to 12,416,139.99, 17,134,149.15 and 6,909,420.60
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Solution
The fourth proportional to 12,416,139.99, 17,134,149.15 and 6,909,420.60 is: 9,534,931.40
Step by Step Solution
- Step 1: Write the proportion equation
12,416,139.99 : 17,134,149.15 = 6,909,420.60 : x - Step 2: Convert to fraction form
12,416,139.99/17,134,149.15 = 6,909,420.60/x - Step 3: Cross multiply
12,416,139.99x = 17,134,149.15 × 6,909,420.60 - Step 4: Simplify right side
12,416,139.99x = 118,387,043,100,482.47 - Step 5: Solve for x
x = 118,387,043,100,482.47/12,416,139.99 - Step 6: Final answer
x = 9,534,931.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.