Home / 709,171,904.82-1,064,172,382.53-512,241,127.86

Finding the Fourth Proportional to 709,171,904.82, 1,064,172,382.53 and 512,241,127.86

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Solution

The fourth proportional to 709,171,904.82, 1,064,172,382.53 and 512,241,127.86 is: 768,661,107.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,171,904.82 : 1,064,172,382.53 = 512,241,127.86 : x
  2. Step 2: Convert to fraction form
    709,171,904.82/1,064,172,382.53 = 512,241,127.86/x
  3. Step 3: Cross multiply
    709,171,904.82x = 1,064,172,382.53 × 512,241,127.86
  4. Step 4: Simplify right side
    709,171,904.82x = 545,112,861,464,630,592
  5. Step 5: Solve for x
    x = 545,112,861,464,630,592/709,171,904.82
  6. Step 6: Final answer
    x = 768,661,107.07

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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.