Home / 709,978,189.48-979,807,748.58-396,720,007.72

Finding the Fourth Proportional to 709,978,189.48, 979,807,748.58 and 396,720,007.72

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Solution

The fourth proportional to 709,978,189.48, 979,807,748.58 and 396,720,007.72 is: 547,494,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,978,189.48 : 979,807,748.58 = 396,720,007.72 : x
  2. Step 2: Convert to fraction form
    709,978,189.48/979,807,748.58 = 396,720,007.72/x
  3. Step 3: Cross multiply
    709,978,189.48x = 979,807,748.58 × 396,720,007.72
  4. Step 4: Simplify right side
    709,978,189.48x = 388,709,337,580,773,440
  5. Step 5: Solve for x
    x = 388,709,337,580,773,440/709,978,189.48
  6. Step 6: Final answer
    x = 547,494,758.77

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Why These Related Problems?

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