Finding the Fourth Proportional to 291,104,117.80, 401,729,274.18 and 158,950,354.12
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Solution
The fourth proportional to 291,104,117.80, 401,729,274.18 and 158,950,354.12 is: 219,354,541.85
Step by Step Solution
- Step 1: Write the proportion equation
291,104,117.80 : 401,729,274.18 = 158,950,354.12 : x - Step 2: Convert to fraction form
291,104,117.80/401,729,274.18 = 158,950,354.12/x - Step 3: Cross multiply
291,104,117.80x = 401,729,274.18 × 158,950,354.12 - Step 4: Simplify right side
291,104,117.80x = 63,855,010,391,281,576 - Step 5: Solve for x
x = 63,855,010,391,281,576/291,104,117.80 - Step 6: Final answer
x = 219,354,541.85
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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.