Home / 402,652,600.72-603,788,073.12-140,245,634.64

Finding the Fourth Proportional to 402,652,600.72, 603,788,073.12 and 140,245,634.64

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Solution

The fourth proportional to 402,652,600.72, 603,788,073.12 and 140,245,634.64 is: 210,301,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,652,600.72 : 603,788,073.12 = 140,245,634.64 : x
  2. Step 2: Convert to fraction form
    402,652,600.72/603,788,073.12 = 140,245,634.64/x
  3. Step 3: Cross multiply
    402,652,600.72x = 603,788,073.12 × 140,245,634.64
  4. Step 4: Simplify right side
    402,652,600.72x = 84,678,641,502,777,120
  5. Step 5: Solve for x
    x = 84,678,641,502,777,120/402,652,600.72
  6. Step 6: Final answer
    x = 210,301,985.76

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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.