Home / 375,489,664.91-518,165,920.90-208,225,502.25

Finding the Fourth Proportional to 375,489,664.91, 518,165,920.90 and 208,225,502.25

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Solution

The fourth proportional to 375,489,664.91, 518,165,920.90 and 208,225,502.25 is: 287,345,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,489,664.91 : 518,165,920.90 = 208,225,502.25 : x
  2. Step 2: Convert to fraction form
    375,489,664.91/518,165,920.90 = 208,225,502.25/x
  3. Step 3: Cross multiply
    375,489,664.91x = 518,165,920.90 × 208,225,502.25
  4. Step 4: Simplify right side
    375,489,664.91x = 107,895,359,126,553,440
  5. Step 5: Solve for x
    x = 107,895,359,126,553,440/375,489,664.91
  6. Step 6: Final answer
    x = 287,345,749.32

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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.