Home / 389,423,767.44-537,383,508.72-213,177,667.20

Finding the Fourth Proportional to 389,423,767.44, 537,383,508.72 and 213,177,667.20

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Solution

The fourth proportional to 389,423,767.44, 537,383,508.72 and 213,177,667.20 is: 294,173,526.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,423,767.44 : 537,383,508.72 = 213,177,667.20 : x
  2. Step 2: Convert to fraction form
    389,423,767.44/537,383,508.72 = 213,177,667.20/x
  3. Step 3: Cross multiply
    389,423,767.44x = 537,383,508.72 × 213,177,667.20
  4. Step 4: Simplify right side
    389,423,767.44x = 114,558,162,780,680,464
  5. Step 5: Solve for x
    x = 114,558,162,780,680,464/389,423,767.44
  6. Step 6: Final answer
    x = 294,173,526.01

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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.