Home / 628,047,987.39-942,212,487.02-191,382,846.75

Finding the Fourth Proportional to 628,047,987.39, 942,212,487.02 and 191,382,846.75

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Solution

The fourth proportional to 628,047,987.39, 942,212,487.02 and 191,382,846.75 is: 287,117,086.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,047,987.39 : 942,212,487.02 = 191,382,846.75 : x
  2. Step 2: Convert to fraction form
    628,047,987.39/942,212,487.02 = 191,382,846.75/x
  3. Step 3: Cross multiply
    628,047,987.39x = 942,212,487.02 × 191,382,846.75
  4. Step 4: Simplify right side
    628,047,987.39x = 180,323,308,008,328,096
  5. Step 5: Solve for x
    x = 180,323,308,008,328,096/628,047,987.39
  6. Step 6: Final answer
    x = 287,117,086.00

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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.