Home / 689,200,811.28-951,100,076.52-375,941,851.92

Finding the Fourth Proportional to 689,200,811.28, 951,100,076.52 and 375,941,851.92

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Solution

The fourth proportional to 689,200,811.28, 951,100,076.52 and 375,941,851.92 is: 518,801,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,200,811.28 : 951,100,076.52 = 375,941,851.92 : x
  2. Step 2: Convert to fraction form
    689,200,811.28/951,100,076.52 = 375,941,851.92/x
  3. Step 3: Cross multiply
    689,200,811.28x = 951,100,076.52 × 375,941,851.92
  4. Step 4: Simplify right side
    689,200,811.28x = 357,558,324,128,182,528
  5. Step 5: Solve for x
    x = 357,558,324,128,182,528/689,200,811.28
  6. Step 6: Final answer
    x = 518,801,368.59

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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.