Home / 138,234,288.87-190,759,676.27-76,353,298.83

Finding the Fourth Proportional to 138,234,288.87, 190,759,676.27 and 76,353,298.83

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Solution

The fourth proportional to 138,234,288.87, 190,759,676.27 and 76,353,298.83 is: 105,365,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,234,288.87 : 190,759,676.27 = 76,353,298.83 : x
  2. Step 2: Convert to fraction form
    138,234,288.87/190,759,676.27 = 76,353,298.83/x
  3. Step 3: Cross multiply
    138,234,288.87x = 190,759,676.27 × 76,353,298.83
  4. Step 4: Simplify right side
    138,234,288.87x = 14,565,130,566,575,602
  5. Step 5: Solve for x
    x = 14,565,130,566,575,602/138,234,288.87
  6. Step 6: Final answer
    x = 105,365,540.53

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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.