Finding the Fourth Proportional to 463,673,985.20, 695,510,977.80 and 248,683,137.20
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Solution
The fourth proportional to 463,673,985.20, 695,510,977.80 and 248,683,137.20 is: 373,024,705.80
Step by Step Solution
- Step 1: Write the proportion equation
463,673,985.20 : 695,510,977.80 = 248,683,137.20 : x - Step 2: Convert to fraction form
463,673,985.20/695,510,977.80 = 248,683,137.20/x - Step 3: Cross multiply
463,673,985.20x = 695,510,977.80 × 248,683,137.20 - Step 4: Simplify right side
463,673,985.20x = 172,961,851,916,343,520 - Step 5: Solve for x
x = 172,961,851,916,343,520/463,673,985.20 - Step 6: Final answer
x = 373,024,705.80
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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.