Finding the Fourth Proportional to 353,768,821.20, 530,653,231.80 and 108,124,981.20
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Solution
The fourth proportional to 353,768,821.20, 530,653,231.80 and 108,124,981.20 is: 162,187,471.80
Step by Step Solution
- Step 1: Write the proportion equation
353,768,821.20 : 530,653,231.80 = 108,124,981.20 : x - Step 2: Convert to fraction form
353,768,821.20/530,653,231.80 = 108,124,981.20/x - Step 3: Cross multiply
353,768,821.20x = 530,653,231.80 × 108,124,981.20 - Step 4: Simplify right side
353,768,821.20x = 57,376,870,712,094,248 - Step 5: Solve for x
x = 57,376,870,712,094,248/353,768,821.20 - Step 6: Final answer
x = 162,187,471.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.