Finding the Fourth Proportional to 7,020,777.40, 10,528,055.70 and 3,235,420.60
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Solution
The fourth proportional to 7,020,777.40, 10,528,055.70 and 3,235,420.60 is: 4,851,697.52
Step by Step Solution
- Step 1: Write the proportion equation
7,020,777.40 : 10,528,055.70 = 3,235,420.60 : x - Step 2: Convert to fraction form
7,020,777.40/10,528,055.70 = 3,235,420.60/x - Step 3: Cross multiply
7,020,777.40x = 10,528,055.70 × 3,235,420.60 - Step 4: Simplify right side
7,020,777.40x = 34,062,688,289,727.42 - Step 5: Solve for x
x = 34,062,688,289,727.42/7,020,777.40 - Step 6: Final answer
x = 4,851,697.52
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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.