Home / 376,899,599.34-520,113,988.62-209,632,262.49

Finding the Fourth Proportional to 376,899,599.34, 520,113,988.62 and 209,632,262.49

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Solution

The fourth proportional to 376,899,599.34, 520,113,988.62 and 209,632,262.49 is: 289,288,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,899,599.34 : 520,113,988.62 = 209,632,262.49 : x
  2. Step 2: Convert to fraction form
    376,899,599.34/520,113,988.62 = 209,632,262.49/x
  3. Step 3: Cross multiply
    376,899,599.34x = 520,113,988.62 × 209,632,262.49
  4. Step 4: Simplify right side
    376,899,599.34x = 109,032,672,187,108,720
  5. Step 5: Solve for x
    x = 109,032,672,187,108,720/376,899,599.34
  6. Step 6: Final answer
    x = 289,288,373.82

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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.