Home / 156,809,043.45-216,401,765.51-86,250,110.81

Finding the Fourth Proportional to 156,809,043.45, 216,401,765.51 and 86,250,110.81

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Solution

The fourth proportional to 156,809,043.45, 216,401,765.51 and 86,250,110.81 is: 119,028,060.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,809,043.45 : 216,401,765.51 = 86,250,110.81 : x
  2. Step 2: Convert to fraction form
    156,809,043.45/216,401,765.51 = 86,250,110.81/x
  3. Step 3: Cross multiply
    156,809,043.45x = 216,401,765.51 × 86,250,110.81
  4. Step 4: Simplify right side
    156,809,043.45x = 18,664,676,253,850,752
  5. Step 5: Solve for x
    x = 18,664,676,253,850,752/156,809,043.45
  6. Step 6: Final answer
    x = 119,028,060.14

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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.