Finding the Fourth Proportional to 20,756,306.70, 31,134,460.05 and 14,697,879.30
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Solution
The fourth proportional to 20,756,306.70, 31,134,460.05 and 14,697,879.30 is: 22,046,818.95
Step by Step Solution
- Step 1: Write the proportion equation
20,756,306.70 : 31,134,460.05 = 14,697,879.30 : x - Step 2: Convert to fraction form
20,756,306.70/31,134,460.05 = 14,697,879.30/x - Step 3: Cross multiply
20,756,306.70x = 31,134,460.05 × 14,697,879.30 - Step 4: Simplify right side
20,756,306.70x = 457,610,535,885,572 - Step 5: Solve for x
x = 457,610,535,885,572/20,756,306.70 - Step 6: Final answer
x = 22,046,818.95
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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.