Home / 138,391,649.96-190,984,463.70-76,515,983.24

Finding the Fourth Proportional to 138,391,649.96, 190,984,463.70 and 76,515,983.24

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Solution

The fourth proportional to 138,391,649.96, 190,984,463.70 and 76,515,983.24 is: 105,594,261.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,391,649.96 : 190,984,463.70 = 76,515,983.24 : x
  2. Step 2: Convert to fraction form
    138,391,649.96/190,984,463.70 = 76,515,983.24/x
  3. Step 3: Cross multiply
    138,391,649.96x = 190,984,463.70 × 76,515,983.24
  4. Step 4: Simplify right side
    138,391,649.96x = 14,613,364,023,569,586
  5. Step 5: Solve for x
    x = 14,613,364,023,569,586/138,391,649.96
  6. Step 6: Final answer
    x = 105,594,261.13

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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.