Finding the Fourth Proportional to 130,387,748.80, 195,581,623.20 and 84,471,246.40
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Solution
The fourth proportional to 130,387,748.80, 195,581,623.20 and 84,471,246.40 is: 126,706,869.60
Step by Step Solution
- Step 1: Write the proportion equation
130,387,748.80 : 195,581,623.20 = 84,471,246.40 : x - Step 2: Convert to fraction form
130,387,748.80/195,581,623.20 = 84,471,246.40/x - Step 3: Cross multiply
130,387,748.80x = 195,581,623.20 × 84,471,246.40 - Step 4: Simplify right side
130,387,748.80x = 16,521,023,484,639,156 - Step 5: Solve for x
x = 16,521,023,484,639,156/130,387,748.80 - Step 6: Final answer
x = 126,706,869.60
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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.