Finding the Fourth Proportional to 19,645,987.96, 26,915,134.12 and 18,909,641.98
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Solution
The fourth proportional to 19,645,987.96, 26,915,134.12 and 18,909,641.98 is: 25,906,335.23
Step by Step Solution
- Step 1: Write the proportion equation
19,645,987.96 : 26,915,134.12 = 18,909,641.98 : x - Step 2: Convert to fraction form
19,645,987.96/26,915,134.12 = 18,909,641.98/x - Step 3: Cross multiply
19,645,987.96x = 26,915,134.12 × 18,909,641.98 - Step 4: Simplify right side
19,645,987.96x = 508,955,550,052,882.38 - Step 5: Solve for x
x = 508,955,550,052,882.38/19,645,987.96 - Step 6: Final answer
x = 25,906,335.23
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.