Finding the Fourth Proportional to 7,174,987.36, 9,901,475.59 and 3,911,801.23
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Solution
The fourth proportional to 7,174,987.36, 9,901,475.59 and 3,911,801.23 is: 5,398,281.90
Step by Step Solution
- Step 1: Write the proportion equation
7,174,987.36 : 9,901,475.59 = 3,911,801.23 : x - Step 2: Convert to fraction form
7,174,987.36/9,901,475.59 = 3,911,801.23/x - Step 3: Cross multiply
7,174,987.36x = 9,901,475.59 × 3,911,801.23 - Step 4: Simplify right side
7,174,987.36x = 38,732,604,391,776.98 - Step 5: Solve for x
x = 38,732,604,391,776.98/7,174,987.36 - Step 6: Final answer
x = 5,398,281.90
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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.