Finding the Fourth Proportional to 463,602,134.40, 695,403,201.60 and 279,936,124.80
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Solution
The fourth proportional to 463,602,134.40, 695,403,201.60 and 279,936,124.80 is: 419,904,187.20
Step by Step Solution
- Step 1: Write the proportion equation
463,602,134.40 : 695,403,201.60 = 279,936,124.80 : x - Step 2: Convert to fraction form
463,602,134.40/695,403,201.60 = 279,936,124.80/x - Step 3: Cross multiply
463,602,134.40x = 695,403,201.60 × 279,936,124.80 - Step 4: Simplify right side
463,602,134.40x = 194,668,477,429,417,184 - Step 5: Solve for x
x = 194,668,477,429,417,184/463,602,134.40 - Step 6: Final answer
x = 419,904,187.20
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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.