Home / 807,206,311.21-1,113,944,666.83-435,928,306.81

Finding the Fourth Proportional to 807,206,311.21, 1,113,944,666.83 and 435,928,306.81

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Solution

The fourth proportional to 807,206,311.21, 1,113,944,666.83 and 435,928,306.81 is: 601,581,040.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,206,311.21 : 1,113,944,666.83 = 435,928,306.81 : x
  2. Step 2: Convert to fraction form
    807,206,311.21/1,113,944,666.83 = 435,928,306.81/x
  3. Step 3: Cross multiply
    807,206,311.21x = 1,113,944,666.83 × 435,928,306.81
  4. Step 4: Simplify right side
    807,206,311.21x = 485,600,012,493,964,224
  5. Step 5: Solve for x
    x = 485,600,012,493,964,224/807,206,311.21
  6. Step 6: Final answer
    x = 601,581,040.37

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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.