Home / 153,914,029.89-212,404,797.90-87,833,212.53

Finding the Fourth Proportional to 153,914,029.89, 212,404,797.90 and 87,833,212.53

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Solution

The fourth proportional to 153,914,029.89, 212,404,797.90 and 87,833,212.53 is: 121,211,794.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,914,029.89 : 212,404,797.90 = 87,833,212.53 : x
  2. Step 2: Convert to fraction form
    153,914,029.89/212,404,797.90 = 87,833,212.53/x
  3. Step 3: Cross multiply
    153,914,029.89x = 212,404,797.90 × 87,833,212.53
  4. Step 4: Simplify right side
    153,914,029.89x = 18,656,195,756,342,400
  5. Step 5: Solve for x
    x = 18,656,195,756,342,400/153,914,029.89
  6. Step 6: Final answer
    x = 121,211,794.47

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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.