Finding the Fourth Proportional to 869,251,745.60, 1,303,429,720.80 and 323,712,468.80
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Solution
The fourth proportional to 869,251,745.60, 1,303,429,720.80 and 323,712,468.80 is: 485,401,904.53
Step by Step Solution
- Step 1: Write the proportion equation
869,251,745.60 : 1,303,429,720.80 = 323,712,468.80 : x - Step 2: Convert to fraction form
869,251,745.60/1,303,429,720.80 = 323,712,468.80/x - Step 3: Cross multiply
869,251,745.60x = 1,303,429,720.80 × 323,712,468.80 - Step 4: Simplify right side
869,251,745.60x = 421,936,452,827,462,720 - Step 5: Solve for x
x = 421,936,452,827,462,720/869,251,745.60 - Step 6: Final answer
x = 485,401,904.53
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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.