Finding the Fourth Proportional to 272,968,365.60, 409,452,548.40 and 169,656,235.20
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Solution
The fourth proportional to 272,968,365.60, 409,452,548.40 and 169,656,235.20 is: 254,484,352.80
Step by Step Solution
- Step 1: Write the proportion equation
272,968,365.60 : 409,452,548.40 = 169,656,235.20 : x - Step 2: Convert to fraction form
272,968,365.60/409,452,548.40 = 169,656,235.20/x - Step 3: Cross multiply
272,968,365.60x = 409,452,548.40 × 169,656,235.20 - Step 4: Simplify right side
272,968,365.60x = 69,466,177,854,589,776 - Step 5: Solve for x
x = 69,466,177,854,589,776/272,968,365.60 - Step 6: Final answer
x = 254,484,352.80
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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.