Home / 138,733,639.68-191,446,502.40-76,856,586.24

Finding the Fourth Proportional to 138,733,639.68, 191,446,502.40 and 76,856,586.24

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Solution

The fourth proportional to 138,733,639.68, 191,446,502.40 and 76,856,586.24 is: 106,058,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,733,639.68 : 191,446,502.40 = 76,856,586.24 : x
  2. Step 2: Convert to fraction form
    138,733,639.68/191,446,502.40 = 76,856,586.24/x
  3. Step 3: Cross multiply
    138,733,639.68x = 191,446,502.40 × 76,856,586.24
  4. Step 4: Simplify right side
    138,733,639.68x = 14,713,924,622,051,966
  5. Step 5: Solve for x
    x = 14,713,924,622,051,966/138,733,639.68
  6. Step 6: Final answer
    x = 106,058,809.21

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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.