Home / 138,803,301.76-191,569,114.99-87,886,872.89

Finding the Fourth Proportional to 138,803,301.76, 191,569,114.99 and 87,886,872.89

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Solution

The fourth proportional to 138,803,301.76, 191,569,114.99 and 87,886,872.89 is: 121,296,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,803,301.76 : 191,569,114.99 = 87,886,872.89 : x
  2. Step 2: Convert to fraction form
    138,803,301.76/191,569,114.99 = 87,886,872.89/x
  3. Step 3: Cross multiply
    138,803,301.76x = 191,569,114.99 × 87,886,872.89
  4. Step 4: Simplify right side
    138,803,301.76x = 16,836,410,457,762,710
  5. Step 5: Solve for x
    x = 16,836,410,457,762,710/138,803,301.76
  6. Step 6: Final answer
    x = 121,296,901.77

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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.