Home / 289,558,844.55-399,588,389.46-215,550,366.03

Finding the Fourth Proportional to 289,558,844.55, 399,588,389.46 and 215,550,366.03

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Solution

The fourth proportional to 289,558,844.55, 399,588,389.46 and 215,550,366.03 is: 297,457,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,558,844.55 : 399,588,389.46 = 215,550,366.03 : x
  2. Step 2: Convert to fraction form
    289,558,844.55/399,588,389.46 = 215,550,366.03/x
  3. Step 3: Cross multiply
    289,558,844.55x = 399,588,389.46 × 215,550,366.03
  4. Step 4: Simplify right side
    289,558,844.55x = 86,131,423,609,441,184
  5. Step 5: Solve for x
    x = 86,131,423,609,441,184/289,558,844.55
  6. Step 6: Final answer
    x = 297,457,408.85

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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.