Home / 138,155,607.66-190,652,132.39-84,506,321.54

Finding the Fourth Proportional to 138,155,607.66, 190,652,132.39 and 84,506,321.54

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Solution

The fourth proportional to 138,155,607.66, 190,652,132.39 and 84,506,321.54 is: 116,617,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,155,607.66 : 190,652,132.39 = 84,506,321.54 : x
  2. Step 2: Convert to fraction form
    138,155,607.66/190,652,132.39 = 84,506,321.54/x
  3. Step 3: Cross multiply
    138,155,607.66x = 190,652,132.39 × 84,506,321.54
  4. Step 4: Simplify right side
    138,155,607.66x = 16,111,310,400,660,194
  5. Step 5: Solve for x
    x = 16,111,310,400,660,194/138,155,607.66
  6. Step 6: Final answer
    x = 116,617,129.58

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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.