Home / 1,209,196,332.28-1,668,637,257.42-673,375,634.20

Finding the Fourth Proportional to 1,209,196,332.28, 1,668,637,257.42 and 673,375,634.20

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Solution

The fourth proportional to 1,209,196,332.28, 1,668,637,257.42 and 673,375,634.20 is: 929,228,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,196,332.28 : 1,668,637,257.42 = 673,375,634.20 : x
  2. Step 2: Convert to fraction form
    1,209,196,332.28/1,668,637,257.42 = 673,375,634.20/x
  3. Step 3: Cross multiply
    1,209,196,332.28x = 1,668,637,257.42 × 673,375,634.20
  4. Step 4: Simplify right side
    1,209,196,332.28x = 1,123,619,671,464,941,312
  5. Step 5: Solve for x
    x = 1,123,619,671,464,941,312/1,209,196,332.28
  6. Step 6: Final answer
    x = 929,228,481.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.