Home / 111,256,320.12-153,530,812.36-61,696,567.48

Finding the Fourth Proportional to 111,256,320.12, 153,530,812.36 and 61,696,567.48

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Solution

The fourth proportional to 111,256,320.12, 153,530,812.36 and 61,696,567.48 is: 85,139,649.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,256,320.12 : 153,530,812.36 = 61,696,567.48 : x
  2. Step 2: Convert to fraction form
    111,256,320.12/153,530,812.36 = 61,696,567.48/x
  3. Step 3: Cross multiply
    111,256,320.12x = 153,530,812.36 × 61,696,567.48
  4. Step 4: Simplify right side
    111,256,320.12x = 9,472,324,125,027,958
  5. Step 5: Solve for x
    x = 9,472,324,125,027,958/111,256,320.12
  6. Step 6: Final answer
    x = 85,139,649.73

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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.