Finding the Fourth Proportional to 26,293,785.80, 39,440,678.70 and 15,676,953.80
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Solution
The fourth proportional to 26,293,785.80, 39,440,678.70 and 15,676,953.80 is: 23,515,430.70
Step by Step Solution
- Step 1: Write the proportion equation
26,293,785.80 : 39,440,678.70 = 15,676,953.80 : x - Step 2: Convert to fraction form
26,293,785.80/39,440,678.70 = 15,676,953.80/x - Step 3: Cross multiply
26,293,785.80x = 39,440,678.70 × 15,676,953.80 - Step 4: Simplify right side
26,293,785.80x = 618,309,697,820,544.12 - Step 5: Solve for x
x = 618,309,697,820,544.12/26,293,785.80 - Step 6: Final answer
x = 23,515,430.70
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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.