Home / 641,579,721.48-885,380,670.90-348,224,349.96

Finding the Fourth Proportional to 641,579,721.48, 885,380,670.90 and 348,224,349.96

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Solution

The fourth proportional to 641,579,721.48, 885,380,670.90 and 348,224,349.96 is: 480,549,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,579,721.48 : 885,380,670.90 = 348,224,349.96 : x
  2. Step 2: Convert to fraction form
    641,579,721.48/885,380,670.90 = 348,224,349.96/x
  3. Step 3: Cross multiply
    641,579,721.48x = 885,380,670.90 × 348,224,349.96
  4. Step 4: Simplify right side
    641,579,721.48x = 308,311,108,591,301,184
  5. Step 5: Solve for x
    x = 308,311,108,591,301,184/641,579,721.48
  6. Step 6: Final answer
    x = 480,549,958.59

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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.