Home / 690,411,958.68-1,035,610,852.13-399,093,717.18

Finding the Fourth Proportional to 690,411,958.68, 1,035,610,852.13 and 399,093,717.18

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Solution

The fourth proportional to 690,411,958.68, 1,035,610,852.13 and 399,093,717.18 is: 598,636,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,411,958.68 : 1,035,610,852.13 = 399,093,717.18 : x
  2. Step 2: Convert to fraction form
    690,411,958.68/1,035,610,852.13 = 399,093,717.18/x
  3. Step 3: Cross multiply
    690,411,958.68x = 1,035,610,852.13 × 399,093,717.18
  4. Step 4: Simplify right side
    690,411,958.68x = 413,305,784,524,328,704
  5. Step 5: Solve for x
    x = 413,305,784,524,328,704/690,411,958.68
  6. Step 6: Final answer
    x = 598,636,479.76

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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.