Finding the Fourth Proportional to 26,299,271.70, 39,448,907.55 and 19,921,979.70
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Solution
The fourth proportional to 26,299,271.70, 39,448,907.55 and 19,921,979.70 is: 29,882,969.55
Step by Step Solution
- Step 1: Write the proportion equation
26,299,271.70 : 39,448,907.55 = 19,921,979.70 : x - Step 2: Convert to fraction form
26,299,271.70/39,448,907.55 = 19,921,979.70/x - Step 3: Cross multiply
26,299,271.70x = 39,448,907.55 × 19,921,979.70 - Step 4: Simplify right side
26,299,271.70x = 785,900,335,398,276.62 - Step 5: Solve for x
x = 785,900,335,398,276.62/26,299,271.70 - Step 6: Final answer
x = 29,882,969.55
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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.