Home / 38,011,417,429.08-52,455,807,997.28-20,630,327,912.81

Finding the Fourth Proportional to 38,011,417,429.08, 52,455,807,997.28 and 20,630,327,912.81

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Solution

The fourth proportional to 38,011,417,429.08, 52,455,807,997.28 and 20,630,327,912.81 is: 28,469,880,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,011,417,429.08 : 52,455,807,997.28 = 20,630,327,912.81 : x
  2. Step 2: Convert to fraction form
    38,011,417,429.08/52,455,807,997.28 = 20,630,327,912.81/x
  3. Step 3: Cross multiply
    38,011,417,429.08x = 52,455,807,997.28 × 20,630,327,912.81
  4. Step 4: Simplify right side
    38,011,417,429.08x = 1,082,180,519,915,579,899,904
  5. Step 5: Solve for x
    x = 1,082,180,519,915,579,899,904/38,011,417,429.08
  6. Step 6: Final answer
    x = 28,469,880,712.41

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Double scale
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1.5x scale

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.