Finding the Fourth Proportional to 720,106,564.68, 993,906,926.16 and 437,789,016.68
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Solution
The fourth proportional to 720,106,564.68, 993,906,926.16 and 437,789,016.68 is: 604,246,034.15
Step by Step Solution
- Step 1: Write the proportion equation
720,106,564.68 : 993,906,926.16 = 437,789,016.68 : x - Step 2: Convert to fraction form
720,106,564.68/993,906,926.16 = 437,789,016.68/x - Step 3: Cross multiply
720,106,564.68x = 993,906,926.16 × 437,789,016.68 - Step 4: Simplify right side
720,106,564.68x = 435,121,535,875,027,776 - Step 5: Solve for x
x = 435,121,535,875,027,776/720,106,564.68 - Step 6: Final answer
x = 604,246,034.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.