Finding the Fourth Proportional to 98,668,030.23, 136,130,579.24 and 57,406,950.99
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Solution
The fourth proportional to 98,668,030.23, 136,130,579.24 and 57,406,950.99 is: 79,203,379.98
Step by Step Solution
- Step 1: Write the proportion equation
98,668,030.23 : 136,130,579.24 = 57,406,950.99 : x - Step 2: Convert to fraction form
98,668,030.23/136,130,579.24 = 57,406,950.99/x - Step 3: Cross multiply
98,668,030.23x = 136,130,579.24 × 57,406,950.99 - Step 4: Simplify right side
98,668,030.23x = 7,814,841,490,383,958 - Step 5: Solve for x
x = 7,814,841,490,383,958/98,668,030.23 - Step 6: Final answer
x = 79,203,379.98
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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.