Finding the Fourth Proportional to 197,484,911.60, 272,425,854.45 and 122,107,144.02
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Solution
The fourth proportional to 197,484,911.60, 272,425,854.45 and 122,107,144.02 is: 168,443,972.63
Step by Step Solution
- Step 1: Write the proportion equation
197,484,911.60 : 272,425,854.45 = 122,107,144.02 : x - Step 2: Convert to fraction form
197,484,911.60/272,425,854.45 = 122,107,144.02/x - Step 3: Cross multiply
197,484,911.60x = 272,425,854.45 × 122,107,144.02 - Step 4: Simplify right side
197,484,911.60x = 33,265,143,044,097,704 - Step 5: Solve for x
x = 33,265,143,044,097,704/197,484,911.60 - Step 6: Final answer
x = 168,443,972.63
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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.