Home / 193,547,939.20-290,321,908.80-111,918,601.60

Finding the Fourth Proportional to 193,547,939.20, 290,321,908.80 and 111,918,601.60

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Solution

The fourth proportional to 193,547,939.20, 290,321,908.80 and 111,918,601.60 is: 167,877,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,547,939.20 : 290,321,908.80 = 111,918,601.60 : x
  2. Step 2: Convert to fraction form
    193,547,939.20/290,321,908.80 = 111,918,601.60/x
  3. Step 3: Cross multiply
    193,547,939.20x = 290,321,908.80 × 111,918,601.60
  4. Step 4: Simplify right side
    193,547,939.20x = 32,492,422,046,738,732
  5. Step 5: Solve for x
    x = 32,492,422,046,738,732/193,547,939.20
  6. Step 6: Final answer
    x = 167,877,902.40

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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.