Finding the Fourth Proportional to 524,440,315.50, 723,725,111.99 and 289,488,920.79
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Solution
The fourth proportional to 524,440,315.50, 723,725,111.99 and 289,488,920.79 is: 399,493,317.79
Step by Step Solution
- Step 1: Write the proportion equation
524,440,315.50 : 723,725,111.99 = 289,488,920.79 : x - Step 2: Convert to fraction form
524,440,315.50/723,725,111.99 = 289,488,920.79/x - Step 3: Cross multiply
524,440,315.50x = 723,725,111.99 × 289,488,920.79 - Step 4: Simplify right side
524,440,315.50x = 209,510,401,622,044,672 - Step 5: Solve for x
x = 209,510,401,622,044,672/524,440,315.50 - Step 6: Final answer
x = 399,493,317.79
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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.