Home / 1,387,012,801.38-2,080,200,831.90-826,933,109.28

Finding the Fourth Proportional to 1,387,012,801.38, 2,080,200,831.90 and 826,933,109.28

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Solution

The fourth proportional to 1,387,012,801.38, 2,080,200,831.90 and 826,933,109.28 is: 1,240,209,852.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,012,801.38 : 2,080,200,831.90 = 826,933,109.28 : x
  2. Step 2: Convert to fraction form
    1,387,012,801.38/2,080,200,831.90 = 826,933,109.28/x
  3. Step 3: Cross multiply
    1,387,012,801.38x = 2,080,200,831.90 × 826,933,109.28
  4. Step 4: Simplify right side
    1,387,012,801.38x = 1,720,186,941,849,909,504
  5. Step 5: Solve for x
    x = 1,720,186,941,849,909,504/1,387,012,801.38
  6. Step 6: Final answer
    x = 1,240,209,852.53

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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.