Home / 138,097,337.77-190,573,387.36-76,217,674.51

Finding the Fourth Proportional to 138,097,337.77, 190,573,387.36 and 76,217,674.51

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Solution

The fourth proportional to 138,097,337.77, 190,573,387.36 and 76,217,674.51 is: 105,179,872.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,097,337.77 : 190,573,387.36 = 76,217,674.51 : x
  2. Step 2: Convert to fraction form
    138,097,337.77/190,573,387.36 = 76,217,674.51/x
  3. Step 3: Cross multiply
    138,097,337.77x = 190,573,387.36 × 76,217,674.51
  4. Step 4: Simplify right side
    138,097,337.77x = 14,525,060,408,072,630
  5. Step 5: Solve for x
    x = 14,525,060,408,072,630/138,097,337.77
  6. Step 6: Final answer
    x = 105,179,872.71

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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.