Home / 709,171,898.32-1,064,172,372.77-512,241,121.36

Finding the Fourth Proportional to 709,171,898.32, 1,064,172,372.77 and 512,241,121.36

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Solution

The fourth proportional to 709,171,898.32, 1,064,172,372.77 and 512,241,121.36 is: 768,661,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,171,898.32 : 1,064,172,372.77 = 512,241,121.36 : x
  2. Step 2: Convert to fraction form
    709,171,898.32/1,064,172,372.77 = 512,241,121.36/x
  3. Step 3: Cross multiply
    709,171,898.32x = 1,064,172,372.77 × 512,241,121.36
  4. Step 4: Simplify right side
    709,171,898.32x = 545,112,849,548,036,736
  5. Step 5: Solve for x
    x = 545,112,849,548,036,736/709,171,898.32
  6. Step 6: Final answer
    x = 768,661,097.32

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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.