Home / 119,215,509.30-164,518,885.69-72,171,958.32

Finding the Fourth Proportional to 119,215,509.30, 164,518,885.69 and 72,171,958.32

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Solution

The fourth proportional to 119,215,509.30, 164,518,885.69 and 72,171,958.32 is: 99,598,200.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,215,509.30 : 164,518,885.69 = 72,171,958.32 : x
  2. Step 2: Convert to fraction form
    119,215,509.30/164,518,885.69 = 72,171,958.32/x
  3. Step 3: Cross multiply
    119,215,509.30x = 164,518,885.69 × 72,171,958.32
  4. Step 4: Simplify right side
    119,215,509.30x = 11,873,650,160,691,094
  5. Step 5: Solve for x
    x = 11,873,650,160,691,094/119,215,509.30
  6. Step 6: Final answer
    x = 99,598,200.19

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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.