Home / 1,276,960,465.49-1,762,204,662.92-690,249,601.49

Finding the Fourth Proportional to 1,276,960,465.49, 1,762,204,662.92 and 690,249,601.49

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Solution

The fourth proportional to 1,276,960,465.49, 1,762,204,662.92 and 690,249,601.49 is: 952,544,028.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,960,465.49 : 1,762,204,662.92 = 690,249,601.49 : x
  2. Step 2: Convert to fraction form
    1,276,960,465.49/1,762,204,662.92 = 690,249,601.49/x
  3. Step 3: Cross multiply
    1,276,960,465.49x = 1,762,204,662.92 × 690,249,601.49
  4. Step 4: Simplify right side
    1,276,960,465.49x = 1,216,361,066,317,264,384
  5. Step 5: Solve for x
    x = 1,216,361,066,317,264,384/1,276,960,465.49
  6. Step 6: Final answer
    x = 952,544,028.73

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1.5x scale

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.