Finding the Fourth Proportional to 21,525,177.15, 29,697,292.38 and 13,794,482.07
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Solution
The fourth proportional to 21,525,177.15, 29,697,292.38 and 13,794,482.07 is: 19,031,609.56
Step by Step Solution
- Step 1: Write the proportion equation
21,525,177.15 : 29,697,292.38 = 13,794,482.07 : x - Step 2: Convert to fraction form
21,525,177.15/29,697,292.38 = 13,794,482.07/x - Step 3: Cross multiply
21,525,177.15x = 29,697,292.38 × 13,794,482.07 - Step 4: Simplify right side
21,525,177.15x = 409,658,767,263,457.62 - Step 5: Solve for x
x = 409,658,767,263,457.62/21,525,177.15 - Step 6: Final answer
x = 19,031,609.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.