Home / 898,150,660.80-1,347,225,991.20-438,383,774.40

Finding the Fourth Proportional to 898,150,660.80, 1,347,225,991.20 and 438,383,774.40

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Solution

The fourth proportional to 898,150,660.80, 1,347,225,991.20 and 438,383,774.40 is: 657,575,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,150,660.80 : 1,347,225,991.20 = 438,383,774.40 : x
  2. Step 2: Convert to fraction form
    898,150,660.80/1,347,225,991.20 = 438,383,774.40/x
  3. Step 3: Cross multiply
    898,150,660.80x = 1,347,225,991.20 × 438,383,774.40
  4. Step 4: Simplify right side
    898,150,660.80x = 590,602,014,992,037,120
  5. Step 5: Solve for x
    x = 590,602,014,992,037,120/898,150,660.80
  6. Step 6: Final answer
    x = 657,575,661.60

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1.5x scale

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.