Home / 140,219,998.40-210,329,997.60-79,753,822.40

Finding the Fourth Proportional to 140,219,998.40, 210,329,997.60 and 79,753,822.40

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Solution

The fourth proportional to 140,219,998.40, 210,329,997.60 and 79,753,822.40 is: 119,630,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,219,998.40 : 210,329,997.60 = 79,753,822.40 : x
  2. Step 2: Convert to fraction form
    140,219,998.40/210,329,997.60 = 79,753,822.40/x
  3. Step 3: Cross multiply
    140,219,998.40x = 210,329,997.60 × 79,753,822.40
  4. Step 4: Simplify right side
    140,219,998.40x = 16,774,621,273,982,828
  5. Step 5: Solve for x
    x = 16,774,621,273,982,828/140,219,998.40
  6. Step 6: Final answer
    x = 119,630,733.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.