Home / 38,011,417,430.08-52,455,807,998.66-20,630,327,913.81

Finding the Fourth Proportional to 38,011,417,430.08, 52,455,807,998.66 and 20,630,327,913.81

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Solution

The fourth proportional to 38,011,417,430.08, 52,455,807,998.66 and 20,630,327,913.81 is: 28,469,880,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,011,417,430.08 : 52,455,807,998.66 = 20,630,327,913.81 : x
  2. Step 2: Convert to fraction form
    38,011,417,430.08/52,455,807,998.66 = 20,630,327,913.81/x
  3. Step 3: Cross multiply
    38,011,417,430.08x = 52,455,807,998.66 × 20,630,327,913.81
  4. Step 4: Simplify right side
    38,011,417,430.08x = 1,082,180,519,996,213,428,224
  5. Step 5: Solve for x
    x = 1,082,180,519,996,213,428,224/38,011,417,430.08
  6. Step 6: Final answer
    x = 28,469,880,713.78

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Double scale
Find fourth proportional to 38,011,417,431.08, 52,455,808,000.04 and 20,630,327,914.81
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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.