Home / 81,124,227.78-111,956,927.01-45,829,791.67

Finding the Fourth Proportional to 81,124,227.78, 111,956,927.01 and 45,829,791.67

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Solution

The fourth proportional to 81,124,227.78, 111,956,927.01 and 45,829,791.67 is: 63,248,215.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,124,227.78 : 111,956,927.01 = 45,829,791.67 : x
  2. Step 2: Convert to fraction form
    81,124,227.78/111,956,927.01 = 45,829,791.67/x
  3. Step 3: Cross multiply
    81,124,227.78x = 111,956,927.01 × 45,829,791.67
  4. Step 4: Simplify right side
    81,124,227.78x = 5,130,962,640,881,696
  5. Step 5: Solve for x
    x = 5,130,962,640,881,696/81,124,227.78
  6. Step 6: Final answer
    x = 63,248,215.50

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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.