Home / 220,421,901.60-330,254,938.80-143,705,440.80

Finding the Fourth Proportional to 220,421,901.60, 330,254,938.80 and 143,705,440.80

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Solution

The fourth proportional to 220,421,901.60, 330,254,938.80 and 143,705,440.80 is: 215,311,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,421,901.60 : 330,254,938.80 = 143,705,440.80 : x
  2. Step 2: Convert to fraction form
    220,421,901.60/330,254,938.80 = 143,705,440.80/x
  3. Step 3: Cross multiply
    220,421,901.60x = 330,254,938.80 × 143,705,440.80
  4. Step 4: Simplify right side
    220,421,901.60x = 47,459,431,556,631,032
  5. Step 5: Solve for x
    x = 47,459,431,556,631,032/220,421,901.60
  6. Step 6: Final answer
    x = 215,311,778.06

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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.