Home / 138,014,178.39-190,425,595.86-84,355,258.59

Finding the Fourth Proportional to 138,014,178.39, 190,425,595.86 and 84,355,258.59

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Solution

The fourth proportional to 138,014,178.39, 190,425,595.86 and 84,355,258.59 is: 116,389,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,014,178.39 : 190,425,595.86 = 84,355,258.59 : x
  2. Step 2: Convert to fraction form
    138,014,178.39/190,425,595.86 = 84,355,258.59/x
  3. Step 3: Cross multiply
    138,014,178.39x = 190,425,595.86 × 84,355,258.59
  4. Step 4: Simplify right side
    138,014,178.39x = 16,063,400,380,925,136
  5. Step 5: Solve for x
    x = 16,063,400,380,925,136/138,014,178.39
  6. Step 6: Final answer
    x = 116,389,493.95

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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.