Finding the Fourth Proportional to 717,697,604.75, 990,423,093.08 and 387,672,746.99
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Solution
The fourth proportional to 717,697,604.75, 990,423,093.08 and 387,672,746.99 is: 534,988,606.11
Step by Step Solution
- Step 1: Write the proportion equation
717,697,604.75 : 990,423,093.08 = 387,672,746.99 : x - Step 2: Convert to fraction form
717,697,604.75/990,423,093.08 = 387,672,746.99/x - Step 3: Cross multiply
717,697,604.75x = 990,423,093.08 × 387,672,746.99 - Step 4: Simplify right side
717,697,604.75x = 383,960,041,174,717,696 - Step 5: Solve for x
x = 383,960,041,174,717,696/717,697,604.75 - Step 6: Final answer
x = 534,988,606.11
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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.