Home / 339,980,424.80-510,096,608.40-135,655,138.40

Finding the Fourth Proportional to 339,980,424.80, 510,096,608.40 and 135,655,138.40

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Solution

The fourth proportional to 339,980,424.80, 510,096,608.40 and 135,655,138.40 is: 203,532,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,980,424.80 : 510,096,608.40 = 135,655,138.40 : x
  2. Step 2: Convert to fraction form
    339,980,424.80/510,096,608.40 = 135,655,138.40/x
  3. Step 3: Cross multiply
    339,980,424.80x = 510,096,608.40 × 135,655,138.40
  4. Step 4: Simplify right side
    339,980,424.80x = 69,197,226,009,872,600
  5. Step 5: Solve for x
    x = 69,197,226,009,872,600/339,980,424.80
  6. Step 6: Final answer
    x = 203,532,971.20

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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.