Finding the Fourth Proportional to 339,268,999.20, 508,903,498.80 and 121,165,612.80
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Solution
The fourth proportional to 339,268,999.20, 508,903,498.80 and 121,165,612.80 is: 181,748,419.20
Step by Step Solution
- Step 1: Write the proportion equation
339,268,999.20 : 508,903,498.80 = 121,165,612.80 : x - Step 2: Convert to fraction form
339,268,999.20/508,903,498.80 = 121,165,612.80/x - Step 3: Cross multiply
339,268,999.20x = 508,903,498.80 × 121,165,612.80 - Step 4: Simplify right side
339,268,999.20x = 61,661,604,288,166,064 - Step 5: Solve for x
x = 61,661,604,288,166,064/339,268,999.20 - Step 6: Final answer
x = 181,748,419.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.