Home / 81,124,221.03-111,956,917.69-45,829,784.91

Finding the Fourth Proportional to 81,124,221.03, 111,956,917.69 and 45,829,784.91

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Solution

The fourth proportional to 81,124,221.03, 111,956,917.69 and 45,829,784.91 is: 63,248,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,124,221.03 : 111,956,917.69 = 45,829,784.91 : x
  2. Step 2: Convert to fraction form
    81,124,221.03/111,956,917.69 = 45,829,784.91/x
  3. Step 3: Cross multiply
    81,124,221.03x = 111,956,917.69 × 45,829,784.91
  4. Step 4: Simplify right side
    81,124,221.03x = 5,130,961,457,138,836
  5. Step 5: Solve for x
    x = 5,130,961,457,138,836/81,124,221.03
  6. Step 6: Final answer
    x = 63,248,206.17

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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.