Home / 206,878,729.47-285,765,164.97-153,341,921.69

Finding the Fourth Proportional to 206,878,729.47, 285,765,164.97 and 153,341,921.69

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Solution

The fourth proportional to 206,878,729.47, 285,765,164.97 and 153,341,921.69 is: 211,813,846.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,878,729.47 : 285,765,164.97 = 153,341,921.69 : x
  2. Step 2: Convert to fraction form
    206,878,729.47/285,765,164.97 = 153,341,921.69/x
  3. Step 3: Cross multiply
    206,878,729.47x = 285,765,164.97 × 153,341,921.69
  4. Step 4: Simplify right side
    206,878,729.47x = 43,819,779,546,364,136
  5. Step 5: Solve for x
    x = 43,819,779,546,364,136/206,878,729.47
  6. Step 6: Final answer
    x = 211,813,846.98

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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.