Home / 1,429,002,069.34-2,143,115,945.61-393,616,713.82

Finding the Fourth Proportional to 1,429,002,069.34, 2,143,115,945.61 and 393,616,713.82

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Solution

The fourth proportional to 1,429,002,069.34, 2,143,115,945.61 and 393,616,713.82 is: 590,318,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,002,069.34 : 2,143,115,945.61 = 393,616,713.82 : x
  2. Step 2: Convert to fraction form
    1,429,002,069.34/2,143,115,945.61 = 393,616,713.82/x
  3. Step 3: Cross multiply
    1,429,002,069.34x = 2,143,115,945.61 × 393,616,713.82
  4. Step 4: Simplify right side
    1,429,002,069.34x = 843,566,255,846,249,984
  5. Step 5: Solve for x
    x = 843,566,255,846,249,984/1,429,002,069.34
  6. Step 6: Final answer
    x = 590,318,428.47

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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.