Finding the Fourth Proportional to 13,349,386.80, 18,731,656.80 and 13,349,386.80
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Solution
The fourth proportional to 13,349,386.80, 18,731,656.80 and 13,349,386.80 is: 18,731,656.80
Step by Step Solution
- Step 1: Write the proportion equation
13,349,386.80 : 18,731,656.80 = 13,349,386.80 : x - Step 2: Convert to fraction form
13,349,386.80/18,731,656.80 = 13,349,386.80/x - Step 3: Cross multiply
13,349,386.80x = 18,731,656.80 × 13,349,386.80 - Step 4: Simplify right side
13,349,386.80x = 250,056,132,028,050.25 - Step 5: Solve for x
x = 250,056,132,028,050.25/13,349,386.80 - Step 6: Final answer
x = 18,731,656.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.