Home / 143,428,835.70-214,697,915.82-77,686,697.16

Finding the Fourth Proportional to 143,428,835.70, 214,697,915.82 and 77,686,697.16

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Solution

The fourth proportional to 143,428,835.70, 214,697,915.82 and 77,686,697.16 is: 116,288,833.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,428,835.70 : 214,697,915.82 = 77,686,697.16 : x
  2. Step 2: Convert to fraction form
    143,428,835.70/214,697,915.82 = 77,686,697.16/x
  3. Step 3: Cross multiply
    143,428,835.70x = 214,697,915.82 × 77,686,697.16
  4. Step 4: Simplify right side
    143,428,835.70x = 16,679,171,967,191,512
  5. Step 5: Solve for x
    x = 16,679,171,967,191,512/143,428,835.70
  6. Step 6: Final answer
    x = 116,288,833.31

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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.