Home / 118,484,342.90-163,508,984.73-66,273,378.42

Finding the Fourth Proportional to 118,484,342.90, 163,508,984.73 and 66,273,378.42

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Solution

The fourth proportional to 118,484,342.90, 163,508,984.73 and 66,273,378.42 is: 91,457,593.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,484,342.90 : 163,508,984.73 = 66,273,378.42 : x
  2. Step 2: Convert to fraction form
    118,484,342.90/163,508,984.73 = 66,273,378.42/x
  3. Step 3: Cross multiply
    118,484,342.90x = 163,508,984.73 × 66,273,378.42
  4. Step 4: Simplify right side
    118,484,342.90x = 10,836,292,820,081,292
  5. Step 5: Solve for x
    x = 10,836,292,820,081,292/118,484,342.90
  6. Step 6: Final answer
    x = 91,457,593.09

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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.