Finding the Fourth Proportional to 10,395,431.12, 15,580,901.14 and 4,243,570.80
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Solution
The fourth proportional to 10,395,431.12, 15,580,901.14 and 4,243,570.80 is: 6,360,357.38
Step by Step Solution
- Step 1: Write the proportion equation
10,395,431.12 : 15,580,901.14 = 4,243,570.80 : x - Step 2: Convert to fraction form
10,395,431.12/15,580,901.14 = 4,243,570.80/x - Step 3: Cross multiply
10,395,431.12x = 15,580,901.14 × 4,243,570.80 - Step 4: Simplify right side
10,395,431.12x = 66,118,657,046,353.40 - Step 5: Solve for x
x = 66,118,657,046,353.40/10,395,431.12 - Step 6: Final answer
x = 6,360,357.38
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1.5x scale
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.