Finding the Fourth Proportional to 26,307,979.20, 39,461,968.80 and 16,765,660.80
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Solution
The fourth proportional to 26,307,979.20, 39,461,968.80 and 16,765,660.80 is: 25,148,491.20
Step by Step Solution
- Step 1: Write the proportion equation
26,307,979.20 : 39,461,968.80 = 16,765,660.80 : x - Step 2: Convert to fraction form
26,307,979.20/39,461,968.80 = 16,765,660.80/x - Step 3: Cross multiply
26,307,979.20x = 39,461,968.80 × 16,765,660.80 - Step 4: Simplify right side
26,307,979.20x = 661,605,983,400,983 - Step 5: Solve for x
x = 661,605,983,400,983/26,307,979.20 - Step 6: Final answer
x = 25,148,491.20
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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.