Home / 1,429,002,068.09-2,143,115,943.73-393,616,712.57

Finding the Fourth Proportional to 1,429,002,068.09, 2,143,115,943.73 and 393,616,712.57

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Solution

The fourth proportional to 1,429,002,068.09, 2,143,115,943.73 and 393,616,712.57 is: 590,318,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,002,068.09 : 2,143,115,943.73 = 393,616,712.57 : x
  2. Step 2: Convert to fraction form
    1,429,002,068.09/2,143,115,943.73 = 393,616,712.57/x
  3. Step 3: Cross multiply
    1,429,002,068.09x = 2,143,115,943.73 × 393,616,712.57
  4. Step 4: Simplify right side
    1,429,002,068.09x = 843,566,252,427,355,648
  5. Step 5: Solve for x
    x = 843,566,252,427,355,648/1,429,002,068.09
  6. Step 6: Final answer
    x = 590,318,426.59

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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.