Finding the Fourth Proportional to 98,110,711.84, 135,395,849.28 and 56,302,425.76
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Solution
The fourth proportional to 98,110,711.84, 135,395,849.28 and 56,302,425.76 is: 77,699,107.56
Step by Step Solution
- Step 1: Write the proportion equation
98,110,711.84 : 135,395,849.28 = 56,302,425.76 : x - Step 2: Convert to fraction form
98,110,711.84/135,395,849.28 = 56,302,425.76/x - Step 3: Cross multiply
98,110,711.84x = 135,395,849.28 × 56,302,425.76 - Step 4: Simplify right side
98,110,711.84x = 7,623,114,752,299,349 - Step 5: Solve for x
x = 7,623,114,752,299,349/98,110,711.84 - Step 6: Final answer
x = 77,699,107.56
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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.